Home / 74,175.78-102,362.04-42,344.61

Finding the Fourth Proportional to 74,175.78, 102,362.04 and 42,344.61

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Solution

The fourth proportional to 74,175.78, 102,362.04 and 42,344.61 is: 58,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,175.78 : 102,362.04 = 42,344.61 : x
  2. Step 2: Convert to fraction form
    74,175.78/102,362.04 = 42,344.61/x
  3. Step 3: Cross multiply
    74,175.78x = 102,362.04 × 42,344.61
  4. Step 4: Simplify right side
    74,175.78x = 4,334,480,662.60
  5. Step 5: Solve for x
    x = 4,334,480,662.60/74,175.78
  6. Step 6: Final answer
    x = 58,435.26

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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.