Home / 87,767.06-131,625.45-28,607.90

Finding the Fourth Proportional to 87,767.06, 131,625.45 and 28,607.90

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Solution

The fourth proportional to 87,767.06, 131,625.45 and 28,607.90 is: 42,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,767.06 : 131,625.45 = 28,607.90 : x
  2. Step 2: Convert to fraction form
    87,767.06/131,625.45 = 28,607.90/x
  3. Step 3: Cross multiply
    87,767.06x = 131,625.45 × 28,607.90
  4. Step 4: Simplify right side
    87,767.06x = 3,765,527,052.93
  5. Step 5: Solve for x
    x = 3,765,527,052.93/87,767.06
  6. Step 6: Final answer
    x = 42,903.65

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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.