Home / 87,565.75-131,336.32-28,401.93

Finding the Fourth Proportional to 87,565.75, 131,336.32 and 28,401.93

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Solution

The fourth proportional to 87,565.75, 131,336.32 and 28,401.93 is: 42,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,565.75 : 131,336.32 = 28,401.93 : x
  2. Step 2: Convert to fraction form
    87,565.75/131,336.32 = 28,401.93/x
  3. Step 3: Cross multiply
    87,565.75x = 131,336.32 × 28,401.93
  4. Step 4: Simplify right side
    87,565.75x = 3,730,204,967.10
  5. Step 5: Solve for x
    x = 3,730,204,967.10/87,565.75
  6. Step 6: Final answer
    x = 42,598.90

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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.