Home / 45,531-68,306.66-13,945.48

Finding the Fourth Proportional to 45,531, 68,306.66 and 13,945.48

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Solution

The fourth proportional to 45,531, 68,306.66 and 13,945.48 is: 20,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,531 : 68,306.66 = 13,945.48 : x
  2. Step 2: Convert to fraction form
    45,531/68,306.66 = 13,945.48/x
  3. Step 3: Cross multiply
    45,531x = 68,306.66 × 13,945.48
  4. Step 4: Simplify right side
    45,531x = 952,569,160.90
  5. Step 5: Solve for x
    x = 952,569,160.90/45,531
  6. Step 6: Final answer
    x = 20,921.33

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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.