Home / 87,132.66-120,019.01-61,595.10

Finding the Fourth Proportional to 87,132.66, 120,019.01 and 61,595.10

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Solution

The fourth proportional to 87,132.66, 120,019.01 and 61,595.10 is: 84,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,132.66 : 120,019.01 = 61,595.10 : x
  2. Step 2: Convert to fraction form
    87,132.66/120,019.01 = 61,595.10/x
  3. Step 3: Cross multiply
    87,132.66x = 120,019.01 × 61,595.10
  4. Step 4: Simplify right side
    87,132.66x = 7,392,582,922.85
  5. Step 5: Solve for x
    x = 7,392,582,922.85/87,132.66
  6. Step 6: Final answer
    x = 84,842.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.