Home / 87,538.68-120,549.15-76,048.38

Finding the Fourth Proportional to 87,538.68, 120,549.15 and 76,048.38

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Solution

The fourth proportional to 87,538.68, 120,549.15 and 76,048.38 is: 104,725.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,538.68 : 120,549.15 = 76,048.38 : x
  2. Step 2: Convert to fraction form
    87,538.68/120,549.15 = 76,048.38/x
  3. Step 3: Cross multiply
    87,538.68x = 120,549.15 × 76,048.38
  4. Step 4: Simplify right side
    87,538.68x = 9,167,567,567.88
  5. Step 5: Solve for x
    x = 9,167,567,567.88/87,538.68
  6. Step 6: Final answer
    x = 104,725.91

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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.