Home / 99,336.68-137,087.28-54,017.72

Finding the Fourth Proportional to 99,336.68, 137,087.28 and 54,017.72

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Solution

The fourth proportional to 99,336.68, 137,087.28 and 54,017.72 is: 74,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,336.68 : 137,087.28 = 54,017.72 : x
  2. Step 2: Convert to fraction form
    99,336.68/137,087.28 = 54,017.72/x
  3. Step 3: Cross multiply
    99,336.68x = 137,087.28 × 54,017.72
  4. Step 4: Simplify right side
    99,336.68x = 7,405,142,306.60
  5. Step 5: Solve for x
    x = 7,405,142,306.60/99,336.68
  6. Step 6: Final answer
    x = 74,545.90

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1.5x scale

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.