Home / 99,863.72-137,811.22-54,541.70

Finding the Fourth Proportional to 99,863.72, 137,811.22 and 54,541.70

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Solution

The fourth proportional to 99,863.72, 137,811.22 and 54,541.70 is: 75,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,863.72 : 137,811.22 = 54,541.70 : x
  2. Step 2: Convert to fraction form
    99,863.72/137,811.22 = 54,541.70/x
  3. Step 3: Cross multiply
    99,863.72x = 137,811.22 × 54,541.70
  4. Step 4: Simplify right side
    99,863.72x = 7,516,458,217.87
  5. Step 5: Solve for x
    x = 7,516,458,217.87/99,863.72
  6. Step 6: Final answer
    x = 75,267.16

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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.