Home / 81,080.43-121,620.63-59,034.11

Finding the Fourth Proportional to 81,080.43, 121,620.63 and 59,034.11

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Solution

The fourth proportional to 81,080.43, 121,620.63 and 59,034.11 is: 88,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,080.43 : 121,620.63 = 59,034.11 : x
  2. Step 2: Convert to fraction form
    81,080.43/121,620.63 = 59,034.11/x
  3. Step 3: Cross multiply
    81,080.43x = 121,620.63 × 59,034.11
  4. Step 4: Simplify right side
    81,080.43x = 7,179,765,041.59
  5. Step 5: Solve for x
    x = 7,179,765,041.59/81,080.43
  6. Step 6: Final answer
    x = 88,551.15

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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.