Home / 74,679.60-112,007.28-30,304.56

Finding the Fourth Proportional to 74,679.60, 112,007.28 and 30,304.56

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Solution

The fourth proportional to 74,679.60, 112,007.28 and 30,304.56 is: 45,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.60 : 112,007.28 = 30,304.56 : x
  2. Step 2: Convert to fraction form
    74,679.60/112,007.28 = 30,304.56/x
  3. Step 3: Cross multiply
    74,679.60x = 112,007.28 × 30,304.56
  4. Step 4: Simplify right side
    74,679.60x = 3,394,331,337.20
  5. Step 5: Solve for x
    x = 3,394,331,337.20/74,679.60
  6. Step 6: Final answer
    x = 45,451.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.