Home / 74,034.52-102,147.42-42,191.80

Finding the Fourth Proportional to 74,034.52, 102,147.42 and 42,191.80

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Solution

The fourth proportional to 74,034.52, 102,147.42 and 42,191.80 is: 58,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,034.52 : 102,147.42 = 42,191.80 : x
  2. Step 2: Convert to fraction form
    74,034.52/102,147.42 = 42,191.80/x
  3. Step 3: Cross multiply
    74,034.52x = 102,147.42 × 42,191.80
  4. Step 4: Simplify right side
    74,034.52x = 4,309,783,515.16
  5. Step 5: Solve for x
    x = 4,309,783,515.16/74,034.52
  6. Step 6: Final answer
    x = 58,213.16

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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.