Home / 52,741.20-79,042.68-21,540.72

Finding the Fourth Proportional to 52,741.20, 79,042.68 and 21,540.72

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Solution

The fourth proportional to 52,741.20, 79,042.68 and 21,540.72 is: 32,282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,741.20 : 79,042.68 = 21,540.72 : x
  2. Step 2: Convert to fraction form
    52,741.20/79,042.68 = 21,540.72/x
  3. Step 3: Cross multiply
    52,741.20x = 79,042.68 × 21,540.72
  4. Step 4: Simplify right side
    52,741.20x = 1,702,636,237.93
  5. Step 5: Solve for x
    x = 1,702,636,237.93/52,741.20
  6. Step 6: Final answer
    x = 32,282.85

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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.