Home / 43,732.20-65,565.90-18,751.80

Finding the Fourth Proportional to 43,732.20, 65,565.90 and 18,751.80

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Solution

The fourth proportional to 43,732.20, 65,565.90 and 18,751.80 is: 28,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,732.20 : 65,565.90 = 18,751.80 : x
  2. Step 2: Convert to fraction form
    43,732.20/65,565.90 = 18,751.80/x
  3. Step 3: Cross multiply
    43,732.20x = 65,565.90 × 18,751.80
  4. Step 4: Simplify right side
    43,732.20x = 1,229,478,643.62
  5. Step 5: Solve for x
    x = 1,229,478,643.62/43,732.20
  6. Step 6: Final answer
    x = 28,113.81

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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.