Home / 54,369.20-81,498.72-36,840.80

Finding the Fourth Proportional to 54,369.20, 81,498.72 and 36,840.80

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Solution

The fourth proportional to 54,369.20, 81,498.72 and 36,840.80 is: 55,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,369.20 : 81,498.72 = 36,840.80 : x
  2. Step 2: Convert to fraction form
    54,369.20/81,498.72 = 36,840.80/x
  3. Step 3: Cross multiply
    54,369.20x = 81,498.72 × 36,840.80
  4. Step 4: Simplify right side
    54,369.20x = 3,002,478,043.78
  5. Step 5: Solve for x
    x = 3,002,478,043.78/54,369.20
  6. Step 6: Final answer
    x = 55,223.88

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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.