Home / 54,183.60-81,275.40-19,126.80

Finding the Fourth Proportional to 54,183.60, 81,275.40 and 19,126.80

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Solution

The fourth proportional to 54,183.60, 81,275.40 and 19,126.80 is: 28,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,183.60 : 81,275.40 = 19,126.80 : x
  2. Step 2: Convert to fraction form
    54,183.60/81,275.40 = 19,126.80/x
  3. Step 3: Cross multiply
    54,183.60x = 81,275.40 × 19,126.80
  4. Step 4: Simplify right side
    54,183.60x = 1,554,538,320.72
  5. Step 5: Solve for x
    x = 1,554,538,320.72/54,183.60
  6. Step 6: Final answer
    x = 28,690.20

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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.