Home / 52,427.78-78,641.19-21,255.62

Finding the Fourth Proportional to 52,427.78, 78,641.19 and 21,255.62

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Solution

The fourth proportional to 52,427.78, 78,641.19 and 21,255.62 is: 31,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,427.78 : 78,641.19 = 21,255.62 : x
  2. Step 2: Convert to fraction form
    52,427.78/78,641.19 = 21,255.62/x
  3. Step 3: Cross multiply
    52,427.78x = 78,641.19 × 21,255.62
  4. Step 4: Simplify right side
    52,427.78x = 1,671,567,250.99
  5. Step 5: Solve for x
    x = 1,671,567,250.99/52,427.78
  6. Step 6: Final answer
    x = 31,883.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.