Home / 66,324.50-91,588.62-42,133.28

Finding the Fourth Proportional to 66,324.50, 91,588.62 and 42,133.28

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Solution

The fourth proportional to 66,324.50, 91,588.62 and 42,133.28 is: 58,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,324.50 : 91,588.62 = 42,133.28 : x
  2. Step 2: Convert to fraction form
    66,324.50/91,588.62 = 42,133.28/x
  3. Step 3: Cross multiply
    66,324.50x = 91,588.62 × 42,133.28
  4. Step 4: Simplify right side
    66,324.50x = 3,858,928,671.33
  5. Step 5: Solve for x
    x = 3,858,928,671.33/66,324.50
  6. Step 6: Final answer
    x = 58,182.55

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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.