Home / 87,631.48-131,391.18-52,083.32

Finding the Fourth Proportional to 87,631.48, 131,391.18 and 52,083.32

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Solution

The fourth proportional to 87,631.48, 131,391.18 and 52,083.32 is: 78,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,631.48 : 131,391.18 = 52,083.32 : x
  2. Step 2: Convert to fraction form
    87,631.48/131,391.18 = 52,083.32/x
  3. Step 3: Cross multiply
    87,631.48x = 131,391.18 × 52,083.32
  4. Step 4: Simplify right side
    87,631.48x = 6,843,288,216.16
  5. Step 5: Solve for x
    x = 6,843,288,216.16/87,631.48
  6. Step 6: Final answer
    x = 78,091.66

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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.