Home / 80,719.02-121,077.18-36,314.34

Finding the Fourth Proportional to 80,719.02, 121,077.18 and 36,314.34

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Solution

The fourth proportional to 80,719.02, 121,077.18 and 36,314.34 is: 54,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,719.02 : 121,077.18 = 36,314.34 : x
  2. Step 2: Convert to fraction form
    80,719.02/121,077.18 = 36,314.34/x
  3. Step 3: Cross multiply
    80,719.02x = 121,077.18 × 36,314.34
  4. Step 4: Simplify right side
    80,719.02x = 4,396,837,880.76
  5. Step 5: Solve for x
    x = 4,396,837,880.76/80,719.02
  6. Step 6: Final answer
    x = 54,470.90

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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.