Home / 73,310.52-109,966.23-20,720.46

Finding the Fourth Proportional to 73,310.52, 109,966.23 and 20,720.46

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Solution

The fourth proportional to 73,310.52, 109,966.23 and 20,720.46 is: 31,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,310.52 : 109,966.23 = 20,720.46 : x
  2. Step 2: Convert to fraction form
    73,310.52/109,966.23 = 20,720.46/x
  3. Step 3: Cross multiply
    73,310.52x = 109,966.23 × 20,720.46
  4. Step 4: Simplify right side
    73,310.52x = 2,278,550,870.07
  5. Step 5: Solve for x
    x = 2,278,550,870.07/73,310.52
  6. Step 6: Final answer
    x = 31,080.82

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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.