Home / 87,938.49-131,688.93-61,519.53

Finding the Fourth Proportional to 87,938.49, 131,688.93 and 61,519.53

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Solution

The fourth proportional to 87,938.49, 131,688.93 and 61,519.53 is: 92,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938.49 : 131,688.93 = 61,519.53 : x
  2. Step 2: Convert to fraction form
    87,938.49/131,688.93 = 61,519.53/x
  3. Step 3: Cross multiply
    87,938.49x = 131,688.93 × 61,519.53
  4. Step 4: Simplify right side
    87,938.49x = 8,101,441,079.80
  5. Step 5: Solve for x
    x = 8,101,441,079.80/87,938.49
  6. Step 6: Final answer
    x = 92,126.22

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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.