Home / 68,005.10-102,041.18-30,591.66

Finding the Fourth Proportional to 68,005.10, 102,041.18 and 30,591.66

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Solution

The fourth proportional to 68,005.10, 102,041.18 and 30,591.66 is: 45,902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,005.10 : 102,041.18 = 30,591.66 : x
  2. Step 2: Convert to fraction form
    68,005.10/102,041.18 = 30,591.66/x
  3. Step 3: Cross multiply
    68,005.10x = 102,041.18 × 30,591.66
  4. Step 4: Simplify right side
    68,005.10x = 3,121,609,084.56
  5. Step 5: Solve for x
    x = 3,121,609,084.56/68,005.10
  6. Step 6: Final answer
    x = 45,902.57

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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.