Home / 47,479.04-71,218.56-21,177.44

Finding the Fourth Proportional to 47,479.04, 71,218.56 and 21,177.44

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Solution

The fourth proportional to 47,479.04, 71,218.56 and 21,177.44 is: 31,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,479.04 : 71,218.56 = 21,177.44 : x
  2. Step 2: Convert to fraction form
    47,479.04/71,218.56 = 21,177.44/x
  3. Step 3: Cross multiply
    47,479.04x = 71,218.56 × 21,177.44
  4. Step 4: Simplify right side
    47,479.04x = 1,508,226,781.29
  5. Step 5: Solve for x
    x = 1,508,226,781.29/47,479.04
  6. Step 6: Final answer
    x = 31,766.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.