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Finding the Fourth Proportional to 68,036.88, 102,015.12 and 25,920.24

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Solution

The fourth proportional to 68,036.88, 102,015.12 and 25,920.24 is: 38,865.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,036.88 : 102,015.12 = 25,920.24 : x
  2. Step 2: Convert to fraction form
    68,036.88/102,015.12 = 25,920.24/x
  3. Step 3: Cross multiply
    68,036.88x = 102,015.12 × 25,920.24
  4. Step 4: Simplify right side
    68,036.88x = 2,644,256,394.03
  5. Step 5: Solve for x
    x = 2,644,256,394.03/68,036.88
  6. Step 6: Final answer
    x = 38,865.04

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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.