Home / 87,448.41-120,678.26-49,722.66

Finding the Fourth Proportional to 87,448.41, 120,678.26 and 49,722.66

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Solution

The fourth proportional to 87,448.41, 120,678.26 and 49,722.66 is: 68,616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,448.41 : 120,678.26 = 49,722.66 : x
  2. Step 2: Convert to fraction form
    87,448.41/120,678.26 = 49,722.66/x
  3. Step 3: Cross multiply
    87,448.41x = 120,678.26 × 49,722.66
  4. Step 4: Simplify right side
    87,448.41x = 6,000,443,842.76
  5. Step 5: Solve for x
    x = 6,000,443,842.76/87,448.41
  6. Step 6: Final answer
    x = 68,616.96

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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.