Home / 54,432.25-81,653.53-21,154.88

Finding the Fourth Proportional to 54,432.25, 81,653.53 and 21,154.88

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Solution

The fourth proportional to 54,432.25, 81,653.53 and 21,154.88 is: 31,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,432.25 : 81,653.53 = 21,154.88 : x
  2. Step 2: Convert to fraction form
    54,432.25/81,653.53 = 21,154.88/x
  3. Step 3: Cross multiply
    54,432.25x = 81,653.53 × 21,154.88
  4. Step 4: Simplify right side
    54,432.25x = 1,727,370,628.73
  5. Step 5: Solve for x
    x = 1,727,370,628.73/54,432.25
  6. Step 6: Final answer
    x = 31,734.32

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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.