Home / 80,734.87-121,023.75-38,604.02

Finding the Fourth Proportional to 80,734.87, 121,023.75 and 38,604.02

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Solution

The fourth proportional to 80,734.87, 121,023.75 and 38,604.02 is: 57,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734.87 : 121,023.75 = 38,604.02 : x
  2. Step 2: Convert to fraction form
    80,734.87/121,023.75 = 38,604.02/x
  3. Step 3: Cross multiply
    80,734.87x = 121,023.75 × 38,604.02
  4. Step 4: Simplify right side
    80,734.87x = 4,672,003,722.57
  5. Step 5: Solve for x
    x = 4,672,003,722.57/80,734.87
  6. Step 6: Final answer
    x = 57,868.47

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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.