Home / 87,832.19-131,489.90-54,445.07

Finding the Fourth Proportional to 87,832.19, 131,489.90 and 54,445.07

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Solution

The fourth proportional to 87,832.19, 131,489.90 and 54,445.07 is: 81,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,832.19 : 131,489.90 = 54,445.07 : x
  2. Step 2: Convert to fraction form
    87,832.19/131,489.90 = 54,445.07/x
  3. Step 3: Cross multiply
    87,832.19x = 131,489.90 × 54,445.07
  4. Step 4: Simplify right side
    87,832.19x = 7,158,976,537.57
  5. Step 5: Solve for x
    x = 7,158,976,537.57/87,832.19
  6. Step 6: Final answer
    x = 81,507.44

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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.