Home / 81,348.20-112,271.70-49,084.48

Finding the Fourth Proportional to 81,348.20, 112,271.70 and 49,084.48

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Solution

The fourth proportional to 81,348.20, 112,271.70 and 49,084.48 is: 67,743.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,348.20 : 112,271.70 = 49,084.48 : x
  2. Step 2: Convert to fraction form
    81,348.20/112,271.70 = 49,084.48/x
  3. Step 3: Cross multiply
    81,348.20x = 112,271.70 × 49,084.48
  4. Step 4: Simplify right side
    81,348.20x = 5,510,797,923.47
  5. Step 5: Solve for x
    x = 5,510,797,923.47/81,348.20
  6. Step 6: Final answer
    x = 67,743.33

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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.