Home / 80,749.89-121,129.02-24,585.66

Finding the Fourth Proportional to 80,749.89, 121,129.02 and 24,585.66

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Solution

The fourth proportional to 80,749.89, 121,129.02 and 24,585.66 is: 36,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749.89 : 121,129.02 = 24,585.66 : x
  2. Step 2: Convert to fraction form
    80,749.89/121,129.02 = 24,585.66/x
  3. Step 3: Cross multiply
    80,749.89x = 121,129.02 × 24,585.66
  4. Step 4: Simplify right side
    80,749.89x = 2,978,036,901.85
  5. Step 5: Solve for x
    x = 2,978,036,901.85/80,749.89
  6. Step 6: Final answer
    x = 36,879.76

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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.