Home / 66,472.56-91,729.89-39,601.17

Finding the Fourth Proportional to 66,472.56, 91,729.89 and 39,601.17

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Solution

The fourth proportional to 66,472.56, 91,729.89 and 39,601.17 is: 54,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.56 : 91,729.89 = 39,601.17 : x
  2. Step 2: Convert to fraction form
    66,472.56/91,729.89 = 39,601.17/x
  3. Step 3: Cross multiply
    66,472.56x = 91,729.89 × 39,601.17
  4. Step 4: Simplify right side
    66,472.56x = 3,632,610,967.97
  5. Step 5: Solve for x
    x = 3,632,610,967.97/66,472.56
  6. Step 6: Final answer
    x = 54,648.28

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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.