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Finding the Fourth Proportional to 68,129.40, 101,999.70 and 41,885.40

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Solution

The fourth proportional to 68,129.40, 101,999.70 and 41,885.40 is: 62,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,129.40 : 101,999.70 = 41,885.40 : x
  2. Step 2: Convert to fraction form
    68,129.40/101,999.70 = 41,885.40/x
  3. Step 3: Cross multiply
    68,129.40x = 101,999.70 × 41,885.40
  4. Step 4: Simplify right side
    68,129.40x = 4,272,298,234.38
  5. Step 5: Solve for x
    x = 4,272,298,234.38/68,129.40
  6. Step 6: Final answer
    x = 62,708.58

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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.