Home / 54,454.47-81,660.54-21,170.13

Finding the Fourth Proportional to 54,454.47, 81,660.54 and 21,170.13

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Solution

The fourth proportional to 54,454.47, 81,660.54 and 21,170.13 is: 31,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,454.47 : 81,660.54 = 21,170.13 : x
  2. Step 2: Convert to fraction form
    54,454.47/81,660.54 = 21,170.13/x
  3. Step 3: Cross multiply
    54,454.47x = 81,660.54 × 21,170.13
  4. Step 4: Simplify right side
    54,454.47x = 1,728,764,247.67
  5. Step 5: Solve for x
    x = 1,728,764,247.67/54,454.47
  6. Step 6: Final answer
    x = 31,746.97

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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.