Home / 87,569.85-131,373.23-28,400.91

Finding the Fourth Proportional to 87,569.85, 131,373.23 and 28,400.91

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Solution

The fourth proportional to 87,569.85, 131,373.23 and 28,400.91 is: 42,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.85 : 131,373.23 = 28,400.91 : x
  2. Step 2: Convert to fraction form
    87,569.85/131,373.23 = 28,400.91/x
  3. Step 3: Cross multiply
    87,569.85x = 131,373.23 × 28,400.91
  4. Step 4: Simplify right side
    87,569.85x = 3,731,119,139.63
  5. Step 5: Solve for x
    x = 3,731,119,139.63/87,569.85
  6. Step 6: Final answer
    x = 42,607.35

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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.