Home / 66,516.38-91,792.61-49,535.20

Finding the Fourth Proportional to 66,516.38, 91,792.61 and 49,535.20

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Solution

The fourth proportional to 66,516.38, 91,792.61 and 49,535.20 is: 68,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,516.38 : 91,792.61 = 49,535.20 : x
  2. Step 2: Convert to fraction form
    66,516.38/91,792.61 = 49,535.20/x
  3. Step 3: Cross multiply
    66,516.38x = 91,792.61 × 49,535.20
  4. Step 4: Simplify right side
    66,516.38x = 4,546,965,294.87
  5. Step 5: Solve for x
    x = 4,546,965,294.87/66,516.38
  6. Step 6: Final answer
    x = 68,358.58

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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.