Home / 54,422.26-81,638.55-21,144.89

Finding the Fourth Proportional to 54,422.26, 81,638.55 and 21,144.89

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Solution

The fourth proportional to 54,422.26, 81,638.55 and 21,144.89 is: 31,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,422.26 : 81,638.55 = 21,144.89 : x
  2. Step 2: Convert to fraction form
    54,422.26/81,638.55 = 21,144.89/x
  3. Step 3: Cross multiply
    54,422.26x = 81,638.55 × 21,144.89
  4. Step 4: Simplify right side
    54,422.26x = 1,726,238,363.61
  5. Step 5: Solve for x
    x = 1,726,238,363.61/54,422.26
  6. Step 6: Final answer
    x = 31,719.35

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1.5x scale

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.