Home / 87,423.90-130,774.98-66,204.53

Finding the Fourth Proportional to 87,423.90, 130,774.98 and 66,204.53

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Solution

The fourth proportional to 87,423.90, 130,774.98 and 66,204.53 is: 99,033.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.90 : 130,774.98 = 66,204.53 : x
  2. Step 2: Convert to fraction form
    87,423.90/130,774.98 = 66,204.53/x
  3. Step 3: Cross multiply
    87,423.90x = 130,774.98 × 66,204.53
  4. Step 4: Simplify right side
    87,423.90x = 8,657,896,086.66
  5. Step 5: Solve for x
    x = 8,657,896,086.66/87,423.90
  6. Step 6: Final answer
    x = 99,033.51

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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.