Home / 54,983.20-82,455.60-28,679.20

Finding the Fourth Proportional to 54,983.20, 82,455.60 and 28,679.20

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Solution

The fourth proportional to 54,983.20, 82,455.60 and 28,679.20 is: 43,008.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,983.20 : 82,455.60 = 28,679.20 : x
  2. Step 2: Convert to fraction form
    54,983.20/82,455.60 = 28,679.20/x
  3. Step 3: Cross multiply
    54,983.20x = 82,455.60 × 28,679.20
  4. Step 4: Simplify right side
    54,983.20x = 2,364,760,643.52
  5. Step 5: Solve for x
    x = 2,364,760,643.52/54,983.20
  6. Step 6: Final answer
    x = 43,008.79

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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.