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Finding the Fourth Proportional to 68,020.70, 102,003.71 and 25,886.33

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Solution

The fourth proportional to 68,020.70, 102,003.71 and 25,886.33 is: 38,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,020.70 : 102,003.71 = 25,886.33 : x
  2. Step 2: Convert to fraction form
    68,020.70/102,003.71 = 25,886.33/x
  3. Step 3: Cross multiply
    68,020.70x = 102,003.71 × 25,886.33
  4. Step 4: Simplify right side
    68,020.70x = 2,640,501,188.27
  5. Step 5: Solve for x
    x = 2,640,501,188.27/68,020.70
  6. Step 6: Final answer
    x = 38,819.08

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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.