Home / 45,132.39-67,616.57-18,789.98

Finding the Fourth Proportional to 45,132.39, 67,616.57 and 18,789.98

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Solution

The fourth proportional to 45,132.39, 67,616.57 and 18,789.98 is: 28,150.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,132.39 : 67,616.57 = 18,789.98 : x
  2. Step 2: Convert to fraction form
    45,132.39/67,616.57 = 18,789.98/x
  3. Step 3: Cross multiply
    45,132.39x = 67,616.57 × 18,789.98
  4. Step 4: Simplify right side
    45,132.39x = 1,270,513,706.86
  5. Step 5: Solve for x
    x = 1,270,513,706.86/45,132.39
  6. Step 6: Final answer
    x = 28,150.82

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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.