Home / 99,682.57-137,560.24-54,360.64

Finding the Fourth Proportional to 99,682.57, 137,560.24 and 54,360.64

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Solution

The fourth proportional to 99,682.57, 137,560.24 and 54,360.64 is: 75,016.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,682.57 : 137,560.24 = 54,360.64 : x
  2. Step 2: Convert to fraction form
    99,682.57/137,560.24 = 54,360.64/x
  3. Step 3: Cross multiply
    99,682.57x = 137,560.24 × 54,360.64
  4. Step 4: Simplify right side
    99,682.57x = 7,477,862,684.95
  5. Step 5: Solve for x
    x = 7,477,862,684.95/99,682.57
  6. Step 6: Final answer
    x = 75,016.75

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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.