Home / 87,501.36-131,272.96-28,337.06

Finding the Fourth Proportional to 87,501.36, 131,272.96 and 28,337.06

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Solution

The fourth proportional to 87,501.36, 131,272.96 and 28,337.06 is: 42,512.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,501.36 : 131,272.96 = 28,337.06 : x
  2. Step 2: Convert to fraction form
    87,501.36/131,272.96 = 28,337.06/x
  3. Step 3: Cross multiply
    87,501.36x = 131,272.96 × 28,337.06
  4. Step 4: Simplify right side
    87,501.36x = 3,719,889,743.90
  5. Step 5: Solve for x
    x = 3,719,889,743.90/87,501.36
  6. Step 6: Final answer
    x = 42,512.36

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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.