Home / 80,911.52-121,381.18-24,750.28

Finding the Fourth Proportional to 80,911.52, 121,381.18 and 24,750.28

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Solution

The fourth proportional to 80,911.52, 121,381.18 and 24,750.28 is: 37,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,911.52 : 121,381.18 = 24,750.28 : x
  2. Step 2: Convert to fraction form
    80,911.52/121,381.18 = 24,750.28/x
  3. Step 3: Cross multiply
    80,911.52x = 121,381.18 × 24,750.28
  4. Step 4: Simplify right side
    80,911.52x = 3,004,218,191.73
  5. Step 5: Solve for x
    x = 3,004,218,191.73/80,911.52
  6. Step 6: Final answer
    x = 37,129.67

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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.