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Finding the Fourth Proportional to 54,893.20, 82,339.80 and 51,206.80

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Solution

The fourth proportional to 54,893.20, 82,339.80 and 51,206.80 is: 76,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,893.20 : 82,339.80 = 51,206.80 : x
  2. Step 2: Convert to fraction form
    54,893.20/82,339.80 = 51,206.80/x
  3. Step 3: Cross multiply
    54,893.20x = 82,339.80 × 51,206.80
  4. Step 4: Simplify right side
    54,893.20x = 4,216,357,670.64
  5. Step 5: Solve for x
    x = 4,216,357,670.64/54,893.20
  6. Step 6: Final answer
    x = 76,810.20

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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.