Home / 54,891.20-82,336.80-51,204.80

Finding the Fourth Proportional to 54,891.20, 82,336.80 and 51,204.80

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Solution

The fourth proportional to 54,891.20, 82,336.80 and 51,204.80 is: 76,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,891.20 : 82,336.80 = 51,204.80 : x
  2. Step 2: Convert to fraction form
    54,891.20/82,336.80 = 51,204.80/x
  3. Step 3: Cross multiply
    54,891.20x = 82,336.80 × 51,204.80
  4. Step 4: Simplify right side
    54,891.20x = 4,216,039,376.64
  5. Step 5: Solve for x
    x = 4,216,039,376.64/54,891.20
  6. Step 6: Final answer
    x = 76,807.20

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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.