Home / 87,397.14-120,610.71-51,617.82

Finding the Fourth Proportional to 87,397.14, 120,610.71 and 51,617.82

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Solution

The fourth proportional to 87,397.14, 120,610.71 and 51,617.82 is: 71,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,397.14 : 120,610.71 = 51,617.82 : x
  2. Step 2: Convert to fraction form
    87,397.14/120,610.71 = 51,617.82/x
  3. Step 3: Cross multiply
    87,397.14x = 120,610.71 × 51,617.82
  4. Step 4: Simplify right side
    87,397.14x = 6,225,661,918.85
  5. Step 5: Solve for x
    x = 6,225,661,918.85/87,397.14
  6. Step 6: Final answer
    x = 71,234.16

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1.5x scale

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.