Home / 91,806.29-126,689.65-51,520.69

Finding the Fourth Proportional to 91,806.29, 126,689.65 and 51,520.69

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Solution

The fourth proportional to 91,806.29, 126,689.65 and 51,520.69 is: 71,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,806.29 : 126,689.65 = 51,520.69 : x
  2. Step 2: Convert to fraction form
    91,806.29/126,689.65 = 51,520.69/x
  3. Step 3: Cross multiply
    91,806.29x = 126,689.65 × 51,520.69
  4. Step 4: Simplify right side
    91,806.29x = 6,527,138,213.42
  5. Step 5: Solve for x
    x = 6,527,138,213.42/91,806.29
  6. Step 6: Final answer
    x = 71,096.85

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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.