Home / 86,789.61-119,769.84-49,063.86

Finding the Fourth Proportional to 86,789.61, 119,769.84 and 49,063.86

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Solution

The fourth proportional to 86,789.61, 119,769.84 and 49,063.86 is: 67,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.61 : 119,769.84 = 49,063.86 : x
  2. Step 2: Convert to fraction form
    86,789.61/119,769.84 = 49,063.86/x
  3. Step 3: Cross multiply
    86,789.61x = 119,769.84 × 49,063.86
  4. Step 4: Simplify right side
    86,789.61x = 5,876,370,661.98
  5. Step 5: Solve for x
    x = 5,876,370,661.98/86,789.61
  6. Step 6: Final answer
    x = 67,708.23

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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.