Home / 87,424.48-120,645.60-49,184.08

Finding the Fourth Proportional to 87,424.48, 120,645.60 and 49,184.08

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Solution

The fourth proportional to 87,424.48, 120,645.60 and 49,184.08 is: 67,873.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,424.48 : 120,645.60 = 49,184.08 : x
  2. Step 2: Convert to fraction form
    87,424.48/120,645.60 = 49,184.08/x
  3. Step 3: Cross multiply
    87,424.48x = 120,645.60 × 49,184.08
  4. Step 4: Simplify right side
    87,424.48x = 5,933,842,842.05
  5. Step 5: Solve for x
    x = 5,933,842,842.05/87,424.48
  6. Step 6: Final answer
    x = 67,873.93

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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.