Home / 87,618.12-131,585.64-80,585.52

Finding the Fourth Proportional to 87,618.12, 131,585.64 and 80,585.52

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Solution

The fourth proportional to 87,618.12, 131,585.64 and 80,585.52 is: 121,024.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,618.12 : 131,585.64 = 80,585.52 : x
  2. Step 2: Convert to fraction form
    87,618.12/131,585.64 = 80,585.52/x
  3. Step 3: Cross multiply
    87,618.12x = 131,585.64 × 80,585.52
  4. Step 4: Simplify right side
    87,618.12x = 10,603,897,223.93
  5. Step 5: Solve for x
    x = 10,603,897,223.93/87,618.12
  6. Step 6: Final answer
    x = 121,024.02

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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.