Home / 87,369.72-120,345.66-61,832.04

Finding the Fourth Proportional to 87,369.72, 120,345.66 and 61,832.04

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Solution

The fourth proportional to 87,369.72, 120,345.66 and 61,832.04 is: 85,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,369.72 : 120,345.66 = 61,832.04 : x
  2. Step 2: Convert to fraction form
    87,369.72/120,345.66 = 61,832.04/x
  3. Step 3: Cross multiply
    87,369.72x = 120,345.66 × 61,832.04
  4. Step 4: Simplify right side
    87,369.72x = 7,441,217,662.95
  5. Step 5: Solve for x
    x = 7,441,217,662.95/87,369.72
  6. Step 6: Final answer
    x = 85,169.30

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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.