Home / 69,721.20-96,214.98-39,512.28

Finding the Fourth Proportional to 69,721.20, 96,214.98 and 39,512.28

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Solution

The fourth proportional to 69,721.20, 96,214.98 and 39,512.28 is: 54,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721.20 : 96,214.98 = 39,512.28 : x
  2. Step 2: Convert to fraction form
    69,721.20/96,214.98 = 39,512.28/x
  3. Step 3: Cross multiply
    69,721.20x = 96,214.98 × 39,512.28
  4. Step 4: Simplify right side
    69,721.20x = 3,801,673,229.95
  5. Step 5: Solve for x
    x = 3,801,673,229.95/69,721.20
  6. Step 6: Final answer
    x = 54,526.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.