Home / 87,490.29-131,256.33-28,326.03

Finding the Fourth Proportional to 87,490.29, 131,256.33 and 28,326.03

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Solution

The fourth proportional to 87,490.29, 131,256.33 and 28,326.03 is: 42,495.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,490.29 : 131,256.33 = 28,326.03 : x
  2. Step 2: Convert to fraction form
    87,490.29/131,256.33 = 28,326.03/x
  3. Step 3: Cross multiply
    87,490.29x = 131,256.33 × 28,326.03
  4. Step 4: Simplify right side
    87,490.29x = 3,717,970,741.27
  5. Step 5: Solve for x
    x = 3,717,970,741.27/87,490.29
  6. Step 6: Final answer
    x = 42,495.81

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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.