Home / 87,581.09-131,371.57-28,416.76

Finding the Fourth Proportional to 87,581.09, 131,371.57 and 28,416.76

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Solution

The fourth proportional to 87,581.09, 131,371.57 and 28,416.76 is: 42,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,581.09 : 131,371.57 = 28,416.76 : x
  2. Step 2: Convert to fraction form
    87,581.09/131,371.57 = 28,416.76/x
  3. Step 3: Cross multiply
    87,581.09x = 131,371.57 × 28,416.76
  4. Step 4: Simplify right side
    87,581.09x = 3,733,153,976.04
  5. Step 5: Solve for x
    x = 3,733,153,976.04/87,581.09
  6. Step 6: Final answer
    x = 42,625.12

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1.5x scale

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.