Home / 45,042.13-67,572.78-13,451.86

Finding the Fourth Proportional to 45,042.13, 67,572.78 and 13,451.86

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Solution

The fourth proportional to 45,042.13, 67,572.78 and 13,451.86 is: 20,180.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,042.13 : 67,572.78 = 13,451.86 : x
  2. Step 2: Convert to fraction form
    45,042.13/67,572.78 = 13,451.86/x
  3. Step 3: Cross multiply
    45,042.13x = 67,572.78 × 13,451.86
  4. Step 4: Simplify right side
    45,042.13x = 908,979,576.37
  5. Step 5: Solve for x
    x = 908,979,576.37/45,042.13
  6. Step 6: Final answer
    x = 20,180.65

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1.5x scale

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.