Home / 57,456.15-79,224.11-40,454.96

Finding the Fourth Proportional to 57,456.15, 79,224.11 and 40,454.96

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Solution

The fourth proportional to 57,456.15, 79,224.11 and 40,454.96 is: 55,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,456.15 : 79,224.11 = 40,454.96 : x
  2. Step 2: Convert to fraction form
    57,456.15/79,224.11 = 40,454.96/x
  3. Step 3: Cross multiply
    57,456.15x = 79,224.11 × 40,454.96
  4. Step 4: Simplify right side
    57,456.15x = 3,205,007,754.40
  5. Step 5: Solve for x
    x = 3,205,007,754.40/57,456.15
  6. Step 6: Final answer
    x = 55,781.81

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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.