Home / 80,567.28-120,832.65-30,629.61

Finding the Fourth Proportional to 80,567.28, 120,832.65 and 30,629.61

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Solution

The fourth proportional to 80,567.28, 120,832.65 and 30,629.61 is: 45,937.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,567.28 : 120,832.65 = 30,629.61 : x
  2. Step 2: Convert to fraction form
    80,567.28/120,832.65 = 30,629.61/x
  3. Step 3: Cross multiply
    80,567.28x = 120,832.65 × 30,629.61
  4. Step 4: Simplify right side
    80,567.28x = 3,701,056,944.77
  5. Step 5: Solve for x
    x = 3,701,056,944.77/80,567.28
  6. Step 6: Final answer
    x = 45,937.47

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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.