Home / 91,212.28-136,572.38-59,543.91

Finding the Fourth Proportional to 91,212.28, 136,572.38 and 59,543.91

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Solution

The fourth proportional to 91,212.28, 136,572.38 and 59,543.91 is: 89,155.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212.28 : 136,572.38 = 59,543.91 : x
  2. Step 2: Convert to fraction form
    91,212.28/136,572.38 = 59,543.91/x
  3. Step 3: Cross multiply
    91,212.28x = 136,572.38 × 59,543.91
  4. Step 4: Simplify right side
    91,212.28x = 8,132,053,428.78
  5. Step 5: Solve for x
    x = 8,132,053,428.78/91,212.28
  6. Step 6: Final answer
    x = 89,155.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.