Home / 70,134.24-105,236.76-30,691.56

Finding the Fourth Proportional to 70,134.24, 105,236.76 and 30,691.56

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Solution

The fourth proportional to 70,134.24, 105,236.76 and 30,691.56 is: 46,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,134.24 : 105,236.76 = 30,691.56 : x
  2. Step 2: Convert to fraction form
    70,134.24/105,236.76 = 30,691.56/x
  3. Step 3: Cross multiply
    70,134.24x = 105,236.76 × 30,691.56
  4. Step 4: Simplify right side
    70,134.24x = 3,229,880,333.75
  5. Step 5: Solve for x
    x = 3,229,880,333.75/70,134.24
  6. Step 6: Final answer
    x = 46,052.83

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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.