Home / 67,689.08-101,557.18-30,245.56

Finding the Fourth Proportional to 67,689.08, 101,557.18 and 30,245.56

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Solution

The fourth proportional to 67,689.08, 101,557.18 and 30,245.56 is: 45,378.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,689.08 : 101,557.18 = 30,245.56 : x
  2. Step 2: Convert to fraction form
    67,689.08/101,557.18 = 30,245.56/x
  3. Step 3: Cross multiply
    67,689.08x = 101,557.18 × 30,245.56
  4. Step 4: Simplify right side
    67,689.08x = 3,071,653,781.12
  5. Step 5: Solve for x
    x = 3,071,653,781.12/67,689.08
  6. Step 6: Final answer
    x = 45,378.87

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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.