Home / 89,711.04-123,801.20-52,007.12

Finding the Fourth Proportional to 89,711.04, 123,801.20 and 52,007.12

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Solution

The fourth proportional to 89,711.04, 123,801.20 and 52,007.12 is: 71,769.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,711.04 : 123,801.20 = 52,007.12 : x
  2. Step 2: Convert to fraction form
    89,711.04/123,801.20 = 52,007.12/x
  3. Step 3: Cross multiply
    89,711.04x = 123,801.20 × 52,007.12
  4. Step 4: Simplify right side
    89,711.04x = 6,438,543,864.54
  5. Step 5: Solve for x
    x = 6,438,543,864.54/89,711.04
  6. Step 6: Final answer
    x = 71,769.81

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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.