Home / 54,250.20-81,387.45-20,967.30

Finding the Fourth Proportional to 54,250.20, 81,387.45 and 20,967.30

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Solution

The fourth proportional to 54,250.20, 81,387.45 and 20,967.30 is: 31,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,250.20 : 81,387.45 = 20,967.30 : x
  2. Step 2: Convert to fraction form
    54,250.20/81,387.45 = 20,967.30/x
  3. Step 3: Cross multiply
    54,250.20x = 81,387.45 × 20,967.30
  4. Step 4: Simplify right side
    54,250.20x = 1,706,475,080.39
  5. Step 5: Solve for x
    x = 1,706,475,080.39/54,250.20
  6. Step 6: Final answer
    x = 31,455.65

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1.5x scale

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.