Home / 69,841.28-96,391.12-39,217.81

Finding the Fourth Proportional to 69,841.28, 96,391.12 and 39,217.81

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Solution

The fourth proportional to 69,841.28, 96,391.12 and 39,217.81 is: 54,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,841.28 : 96,391.12 = 39,217.81 : x
  2. Step 2: Convert to fraction form
    69,841.28/96,391.12 = 39,217.81/x
  3. Step 3: Cross multiply
    69,841.28x = 96,391.12 × 39,217.81
  4. Step 4: Simplify right side
    69,841.28x = 3,780,248,545.09
  5. Step 5: Solve for x
    x = 3,780,248,545.09/69,841.28
  6. Step 6: Final answer
    x = 54,126.28

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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.