Home / 74,040.38-102,175.79-40,506.38

Finding the Fourth Proportional to 74,040.38, 102,175.79 and 40,506.38

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Solution

The fourth proportional to 74,040.38, 102,175.79 and 40,506.38 is: 55,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,040.38 : 102,175.79 = 40,506.38 : x
  2. Step 2: Convert to fraction form
    74,040.38/102,175.79 = 40,506.38/x
  3. Step 3: Cross multiply
    74,040.38x = 102,175.79 × 40,506.38
  4. Step 4: Simplify right side
    74,040.38x = 4,138,770,663.13
  5. Step 5: Solve for x
    x = 4,138,770,663.13/74,040.38
  6. Step 6: Final answer
    x = 55,898.83

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1.5x scale

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.