Home / 87,712.38-131,570.19-28,547.82

Finding the Fourth Proportional to 87,712.38, 131,570.19 and 28,547.82

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Solution

The fourth proportional to 87,712.38, 131,570.19 and 28,547.82 is: 42,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,712.38 : 131,570.19 = 28,547.82 : x
  2. Step 2: Convert to fraction form
    87,712.38/131,570.19 = 28,547.82/x
  3. Step 3: Cross multiply
    87,712.38x = 131,570.19 × 28,547.82
  4. Step 4: Simplify right side
    87,712.38x = 3,756,042,101.49
  5. Step 5: Solve for x
    x = 3,756,042,101.49/87,712.38
  6. Step 6: Final answer
    x = 42,822.26

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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.