Home / 80,028.20-110,470.02-71,630.12

Finding the Fourth Proportional to 80,028.20, 110,470.02 and 71,630.12

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Solution

The fourth proportional to 80,028.20, 110,470.02 and 71,630.12 is: 98,877.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,028.20 : 110,470.02 = 71,630.12 : x
  2. Step 2: Convert to fraction form
    80,028.20/110,470.02 = 71,630.12/x
  3. Step 3: Cross multiply
    80,028.20x = 110,470.02 × 71,630.12
  4. Step 4: Simplify right side
    80,028.20x = 7,912,980,789.00
  5. Step 5: Solve for x
    x = 7,912,980,789.00/80,028.20
  6. Step 6: Final answer
    x = 98,877.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.