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Finding the Fourth Proportional to 68,601.60, 102,902.40 and 39,077.10

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Solution

The fourth proportional to 68,601.60, 102,902.40 and 39,077.10 is: 58,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,601.60 : 102,902.40 = 39,077.10 : x
  2. Step 2: Convert to fraction form
    68,601.60/102,902.40 = 39,077.10/x
  3. Step 3: Cross multiply
    68,601.60x = 102,902.40 × 39,077.10
  4. Step 4: Simplify right side
    68,601.60x = 4,021,127,375.04
  5. Step 5: Solve for x
    x = 4,021,127,375.04/68,601.60
  6. Step 6: Final answer
    x = 58,615.65

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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.