Home / 60,128.97-82,972.33-40,708.38

Finding the Fourth Proportional to 60,128.97, 82,972.33 and 40,708.38

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Solution

The fourth proportional to 60,128.97, 82,972.33 and 40,708.38 is: 56,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,128.97 : 82,972.33 = 40,708.38 : x
  2. Step 2: Convert to fraction form
    60,128.97/82,972.33 = 40,708.38/x
  3. Step 3: Cross multiply
    60,128.97x = 82,972.33 × 40,708.38
  4. Step 4: Simplify right side
    60,128.97x = 3,377,668,935.58
  5. Step 5: Solve for x
    x = 3,377,668,935.58/60,128.97
  6. Step 6: Final answer
    x = 56,173.74

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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.