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Finding the Fourth Proportional to 52,787, 79,191.84 and 15,347.72

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Solution

The fourth proportional to 52,787, 79,191.84 and 15,347.72 is: 23,024.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,787 : 79,191.84 = 15,347.72 : x
  2. Step 2: Convert to fraction form
    52,787/79,191.84 = 15,347.72/x
  3. Step 3: Cross multiply
    52,787x = 79,191.84 × 15,347.72
  4. Step 4: Simplify right side
    52,787x = 1,215,414,186.60
  5. Step 5: Solve for x
    x = 1,215,414,186.60/52,787
  6. Step 6: Final answer
    x = 23,024.88

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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.