Home / 87,581.09-131,371.56-28,416.77

Finding the Fourth Proportional to 87,581.09, 131,371.56 and 28,416.77

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Solution

The fourth proportional to 87,581.09, 131,371.56 and 28,416.77 is: 42,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,581.09 : 131,371.56 = 28,416.77 : x
  2. Step 2: Convert to fraction form
    87,581.09/131,371.56 = 28,416.77/x
  3. Step 3: Cross multiply
    87,581.09x = 131,371.56 × 28,416.77
  4. Step 4: Simplify right side
    87,581.09x = 3,733,154,748.20
  5. Step 5: Solve for x
    x = 3,733,154,748.20/87,581.09
  6. Step 6: Final answer
    x = 42,625.13

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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.