Home / 68,348.78-102,617.61-47,236.81

Finding the Fourth Proportional to 68,348.78, 102,617.61 and 47,236.81

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Solution

The fourth proportional to 68,348.78, 102,617.61 and 47,236.81 is: 70,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,348.78 : 102,617.61 = 47,236.81 : x
  2. Step 2: Convert to fraction form
    68,348.78/102,617.61 = 47,236.81/x
  3. Step 3: Cross multiply
    68,348.78x = 102,617.61 × 47,236.81
  4. Step 4: Simplify right side
    68,348.78x = 4,847,327,796.95
  5. Step 5: Solve for x
    x = 4,847,327,796.95/68,348.78
  6. Step 6: Final answer
    x = 70,920.47

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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.