Home / 87,552.50-131,089.69-66,142.47

Finding the Fourth Proportional to 87,552.50, 131,089.69 and 66,142.47

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Solution

The fourth proportional to 87,552.50, 131,089.69 and 66,142.47 is: 99,033.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,552.50 : 131,089.69 = 66,142.47 : x
  2. Step 2: Convert to fraction form
    87,552.50/131,089.69 = 66,142.47/x
  3. Step 3: Cross multiply
    87,552.50x = 131,089.69 × 66,142.47
  4. Step 4: Simplify right side
    87,552.50x = 8,670,596,462.40
  5. Step 5: Solve for x
    x = 8,670,596,462.40/87,552.50
  6. Step 6: Final answer
    x = 99,033.12

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1.5x scale

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.