Home / 82,470.42-113,769.09-48,912.66

Finding the Fourth Proportional to 82,470.42, 113,769.09 and 48,912.66

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Solution

The fourth proportional to 82,470.42, 113,769.09 and 48,912.66 is: 67,475.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,470.42 : 113,769.09 = 48,912.66 : x
  2. Step 2: Convert to fraction form
    82,470.42/113,769.09 = 48,912.66/x
  3. Step 3: Cross multiply
    82,470.42x = 113,769.09 × 48,912.66
  4. Step 4: Simplify right side
    82,470.42x = 5,564,748,817.68
  5. Step 5: Solve for x
    x = 5,564,748,817.68/82,470.42
  6. Step 6: Final answer
    x = 67,475.69

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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.