Home / 74,508.45-102,822.87-40,517.61

Finding the Fourth Proportional to 74,508.45, 102,822.87 and 40,517.61

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Solution

The fourth proportional to 74,508.45, 102,822.87 and 40,517.61 is: 55,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.45 : 102,822.87 = 40,517.61 : x
  2. Step 2: Convert to fraction form
    74,508.45/102,822.87 = 40,517.61/x
  3. Step 3: Cross multiply
    74,508.45x = 102,822.87 × 40,517.61
  4. Step 4: Simplify right side
    74,508.45x = 4,166,136,945.74
  5. Step 5: Solve for x
    x = 4,166,136,945.74/74,508.45
  6. Step 6: Final answer
    x = 55,914.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.