Home / 80,816.56-121,244.40-27,508

Finding the Fourth Proportional to 80,816.56, 121,244.40 and 27,508

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Solution

The fourth proportional to 80,816.56, 121,244.40 and 27,508 is: 41,268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,816.56 : 121,244.40 = 27,508 : x
  2. Step 2: Convert to fraction form
    80,816.56/121,244.40 = 27,508/x
  3. Step 3: Cross multiply
    80,816.56x = 121,244.40 × 27,508
  4. Step 4: Simplify right side
    80,816.56x = 3,335,190,955.20
  5. Step 5: Solve for x
    x = 3,335,190,955.20/80,816.56
  6. Step 6: Final answer
    x = 41,268.66

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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.