Home / 99,691.40-137,570.26-56,676.52

Finding the Fourth Proportional to 99,691.40, 137,570.26 and 56,676.52

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Solution

The fourth proportional to 99,691.40, 137,570.26 and 56,676.52 is: 78,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,691.40 : 137,570.26 = 56,676.52 : x
  2. Step 2: Convert to fraction form
    99,691.40/137,570.26 = 56,676.52/x
  3. Step 3: Cross multiply
    99,691.40x = 137,570.26 × 56,676.52
  4. Step 4: Simplify right side
    99,691.40x = 7,797,003,592.30
  5. Step 5: Solve for x
    x = 7,797,003,592.30/99,691.40
  6. Step 6: Final answer
    x = 78,211.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.