Home / 51,836.92-71,569.38-39,879.16

Finding the Fourth Proportional to 51,836.92, 71,569.38 and 39,879.16

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Solution

The fourth proportional to 51,836.92, 71,569.38 and 39,879.16 is: 55,059.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,836.92 : 71,569.38 = 39,879.16 : x
  2. Step 2: Convert to fraction form
    51,836.92/71,569.38 = 39,879.16/x
  3. Step 3: Cross multiply
    51,836.92x = 71,569.38 × 39,879.16
  4. Step 4: Simplify right side
    51,836.92x = 2,854,126,756.12
  5. Step 5: Solve for x
    x = 2,854,126,756.12/51,836.92
  6. Step 6: Final answer
    x = 55,059.73

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1.5x scale

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.