Home / 54,336.76-81,489.34-21,049.40

Finding the Fourth Proportional to 54,336.76, 81,489.34 and 21,049.40

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Solution

The fourth proportional to 54,336.76, 81,489.34 and 21,049.40 is: 31,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,336.76 : 81,489.34 = 21,049.40 : x
  2. Step 2: Convert to fraction form
    54,336.76/81,489.34 = 21,049.40/x
  3. Step 3: Cross multiply
    54,336.76x = 81,489.34 × 21,049.40
  4. Step 4: Simplify right side
    54,336.76x = 1,715,301,713.40
  5. Step 5: Solve for x
    x = 1,715,301,713.40/54,336.76
  6. Step 6: Final answer
    x = 31,567.98

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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.