Home / 74,540.48-102,874.62-42,719.60

Finding the Fourth Proportional to 74,540.48, 102,874.62 and 42,719.60

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Solution

The fourth proportional to 74,540.48, 102,874.62 and 42,719.60 is: 58,958.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,540.48 : 102,874.62 = 42,719.60 : x
  2. Step 2: Convert to fraction form
    74,540.48/102,874.62 = 42,719.60/x
  3. Step 3: Cross multiply
    74,540.48x = 102,874.62 × 42,719.60
  4. Step 4: Simplify right side
    74,540.48x = 4,394,762,616.55
  5. Step 5: Solve for x
    x = 4,394,762,616.55/74,540.48
  6. Step 6: Final answer
    x = 58,958.07

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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.