Home / 84,812.20-127,218.30-49,382.80

Finding the Fourth Proportional to 84,812.20, 127,218.30 and 49,382.80

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Solution

The fourth proportional to 84,812.20, 127,218.30 and 49,382.80 is: 74,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,812.20 : 127,218.30 = 49,382.80 : x
  2. Step 2: Convert to fraction form
    84,812.20/127,218.30 = 49,382.80/x
  3. Step 3: Cross multiply
    84,812.20x = 127,218.30 × 49,382.80
  4. Step 4: Simplify right side
    84,812.20x = 6,282,395,865.24
  5. Step 5: Solve for x
    x = 6,282,395,865.24/84,812.20
  6. Step 6: Final answer
    x = 74,074.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.