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Finding the Fourth Proportional to 52,877.01, 79,297.04 and 21,278.88

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Solution

The fourth proportional to 52,877.01, 79,297.04 and 21,278.88 is: 31,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,877.01 : 79,297.04 = 21,278.88 : x
  2. Step 2: Convert to fraction form
    52,877.01/79,297.04 = 21,278.88/x
  3. Step 3: Cross multiply
    52,877.01x = 79,297.04 × 21,278.88
  4. Step 4: Simplify right side
    52,877.01x = 1,687,352,251.71
  5. Step 5: Solve for x
    x = 1,687,352,251.71/52,877.01
  6. Step 6: Final answer
    x = 31,910.88

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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.