Home / 74,166.89-102,350.42-40,175.66

Finding the Fourth Proportional to 74,166.89, 102,350.42 and 40,175.66

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Solution

The fourth proportional to 74,166.89, 102,350.42 and 40,175.66 is: 55,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,166.89 : 102,350.42 = 40,175.66 : x
  2. Step 2: Convert to fraction form
    74,166.89/102,350.42 = 40,175.66/x
  3. Step 3: Cross multiply
    74,166.89x = 102,350.42 × 40,175.66
  4. Step 4: Simplify right side
    74,166.89x = 4,111,995,618.13
  5. Step 5: Solve for x
    x = 4,111,995,618.13/74,166.89
  6. Step 6: Final answer
    x = 55,442.47

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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.