Home / 91,489.20-137,233.80-35,331.90

Finding the Fourth Proportional to 91,489.20, 137,233.80 and 35,331.90

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Solution

The fourth proportional to 91,489.20, 137,233.80 and 35,331.90 is: 52,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,489.20 : 137,233.80 = 35,331.90 : x
  2. Step 2: Convert to fraction form
    91,489.20/137,233.80 = 35,331.90/x
  3. Step 3: Cross multiply
    91,489.20x = 137,233.80 × 35,331.90
  4. Step 4: Simplify right side
    91,489.20x = 4,848,730,898.22
  5. Step 5: Solve for x
    x = 4,848,730,898.22/91,489.20
  6. Step 6: Final answer
    x = 52,997.85

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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.