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Finding the Fourth Proportional to 52,751.62, 79,127.18 and 21,586.86

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Solution

The fourth proportional to 52,751.62, 79,127.18 and 21,586.86 is: 32,380.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,751.62 : 79,127.18 = 21,586.86 : x
  2. Step 2: Convert to fraction form
    52,751.62/79,127.18 = 21,586.86/x
  3. Step 3: Cross multiply
    52,751.62x = 79,127.18 × 21,586.86
  4. Step 4: Simplify right side
    52,751.62x = 1,708,107,356.85
  5. Step 5: Solve for x
    x = 1,708,107,356.85/52,751.62
  6. Step 6: Final answer
    x = 32,380.19

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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.