Home / 53,134.25-79,706.03-13,691.30

Finding the Fourth Proportional to 53,134.25, 79,706.03 and 13,691.30

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Solution

The fourth proportional to 53,134.25, 79,706.03 and 13,691.30 is: 20,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,134.25 : 79,706.03 = 13,691.30 : x
  2. Step 2: Convert to fraction form
    53,134.25/79,706.03 = 13,691.30/x
  3. Step 3: Cross multiply
    53,134.25x = 79,706.03 × 13,691.30
  4. Step 4: Simplify right side
    53,134.25x = 1,091,278,701.55
  5. Step 5: Solve for x
    x = 1,091,278,701.55/53,134.25
  6. Step 6: Final answer
    x = 20,538.14

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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.