Home / 74,304.20-102,539.79-42,473.78

Finding the Fourth Proportional to 74,304.20, 102,539.79 and 42,473.78

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Solution

The fourth proportional to 74,304.20, 102,539.79 and 42,473.78 is: 58,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,304.20 : 102,539.79 = 42,473.78 : x
  2. Step 2: Convert to fraction form
    74,304.20/102,539.79 = 42,473.78/x
  3. Step 3: Cross multiply
    74,304.20x = 102,539.79 × 42,473.78
  4. Step 4: Simplify right side
    74,304.20x = 4,355,252,481.71
  5. Step 5: Solve for x
    x = 4,355,252,481.71/74,304.20
  6. Step 6: Final answer
    x = 58,613.81

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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.