Home / 42,220.78-58,255.07-25,222.32

Finding the Fourth Proportional to 42,220.78, 58,255.07 and 25,222.32

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Solution

The fourth proportional to 42,220.78, 58,255.07 and 25,222.32 is: 34,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,220.78 : 58,255.07 = 25,222.32 : x
  2. Step 2: Convert to fraction form
    42,220.78/58,255.07 = 25,222.32/x
  3. Step 3: Cross multiply
    42,220.78x = 58,255.07 × 25,222.32
  4. Step 4: Simplify right side
    42,220.78x = 1,469,327,891.05
  5. Step 5: Solve for x
    x = 1,469,327,891.05/42,220.78
  6. Step 6: Final answer
    x = 34,801.06

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Half scale
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Double scale
Find fourth proportional to 42,221.78, 58,256.44 and 25,223.32
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.