Home / 54,250.93-81,350.88-20,986.66

Finding the Fourth Proportional to 54,250.93, 81,350.88 and 20,986.66

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Solution

The fourth proportional to 54,250.93, 81,350.88 and 20,986.66 is: 31,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,250.93 : 81,350.88 = 20,986.66 : x
  2. Step 2: Convert to fraction form
    54,250.93/81,350.88 = 20,986.66/x
  3. Step 3: Cross multiply
    54,250.93x = 81,350.88 × 20,986.66
  4. Step 4: Simplify right side
    54,250.93x = 1,707,283,259.26
  5. Step 5: Solve for x
    x = 1,707,283,259.26/54,250.93
  6. Step 6: Final answer
    x = 31,470.12

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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.