Home / 54,747.60-82,121.40-36,085.20

Finding the Fourth Proportional to 54,747.60, 82,121.40 and 36,085.20

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Solution

The fourth proportional to 54,747.60, 82,121.40 and 36,085.20 is: 54,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,747.60 : 82,121.40 = 36,085.20 : x
  2. Step 2: Convert to fraction form
    54,747.60/82,121.40 = 36,085.20/x
  3. Step 3: Cross multiply
    54,747.60x = 82,121.40 × 36,085.20
  4. Step 4: Simplify right side
    54,747.60x = 2,963,367,143.28
  5. Step 5: Solve for x
    x = 2,963,367,143.28/54,747.60
  6. Step 6: Final answer
    x = 54,127.80

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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.