Home / 87,572.15-131,376.69-28,403.22

Finding the Fourth Proportional to 87,572.15, 131,376.69 and 28,403.22

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Solution

The fourth proportional to 87,572.15, 131,376.69 and 28,403.22 is: 42,610.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.15 : 131,376.69 = 28,403.22 : x
  2. Step 2: Convert to fraction form
    87,572.15/131,376.69 = 28,403.22/x
  3. Step 3: Cross multiply
    87,572.15x = 131,376.69 × 28,403.22
  4. Step 4: Simplify right side
    87,572.15x = 3,731,521,028.94
  5. Step 5: Solve for x
    x = 3,731,521,028.94/87,572.15
  6. Step 6: Final answer
    x = 42,610.82

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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.