Home / 80,959.20-121,402.35-36,563.10

Finding the Fourth Proportional to 80,959.20, 121,402.35 and 36,563.10

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Solution

The fourth proportional to 80,959.20, 121,402.35 and 36,563.10 is: 54,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,959.20 : 121,402.35 = 36,563.10 : x
  2. Step 2: Convert to fraction form
    80,959.20/121,402.35 = 36,563.10/x
  3. Step 3: Cross multiply
    80,959.20x = 121,402.35 × 36,563.10
  4. Step 4: Simplify right side
    80,959.20x = 4,438,846,263.29
  5. Step 5: Solve for x
    x = 4,438,846,263.29/80,959.20
  6. Step 6: Final answer
    x = 54,828.19

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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.