Home / 54,400.65-81,584.56-21,113.29

Finding the Fourth Proportional to 54,400.65, 81,584.56 and 21,113.29

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Solution

The fourth proportional to 54,400.65, 81,584.56 and 21,113.29 is: 31,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,400.65 : 81,584.56 = 21,113.29 : x
  2. Step 2: Convert to fraction form
    54,400.65/81,584.56 = 21,113.29/x
  3. Step 3: Cross multiply
    54,400.65x = 81,584.56 × 21,113.29
  4. Step 4: Simplify right side
    54,400.65x = 1,722,518,474.80
  5. Step 5: Solve for x
    x = 1,722,518,474.80/54,400.65
  6. Step 6: Final answer
    x = 31,663.56

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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.