Home / 87,382.40-120,587.04-49,656.68

Finding the Fourth Proportional to 87,382.40, 120,587.04 and 49,656.68

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Solution

The fourth proportional to 87,382.40, 120,587.04 and 49,656.68 is: 68,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,382.40 : 120,587.04 = 49,656.68 : x
  2. Step 2: Convert to fraction form
    87,382.40/120,587.04 = 49,656.68/x
  3. Step 3: Cross multiply
    87,382.40x = 120,587.04 × 49,656.68
  4. Step 4: Simplify right side
    87,382.40x = 5,987,952,057.43
  5. Step 5: Solve for x
    x = 5,987,952,057.43/87,382.40
  6. Step 6: Final answer
    x = 68,525.84

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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.