Home / 45,169.52-67,741.86-18,869.90

Finding the Fourth Proportional to 45,169.52, 67,741.86 and 18,869.90

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Solution

The fourth proportional to 45,169.52, 67,741.86 and 18,869.90 is: 28,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,169.52 : 67,741.86 = 18,869.90 : x
  2. Step 2: Convert to fraction form
    45,169.52/67,741.86 = 18,869.90/x
  3. Step 3: Cross multiply
    45,169.52x = 67,741.86 × 18,869.90
  4. Step 4: Simplify right side
    45,169.52x = 1,278,282,124.01
  5. Step 5: Solve for x
    x = 1,278,282,124.01/45,169.52
  6. Step 6: Final answer
    x = 28,299.66

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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.