Home / 54,919.64-82,395.90-28,642.88

Finding the Fourth Proportional to 54,919.64, 82,395.90 and 28,642.88

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Solution

The fourth proportional to 54,919.64, 82,395.90 and 28,642.88 is: 42,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,919.64 : 82,395.90 = 28,642.88 : x
  2. Step 2: Convert to fraction form
    54,919.64/82,395.90 = 28,642.88/x
  3. Step 3: Cross multiply
    54,919.64x = 82,395.90 × 28,642.88
  4. Step 4: Simplify right side
    54,919.64x = 2,360,055,876.19
  5. Step 5: Solve for x
    x = 2,360,055,876.19/54,919.64
  6. Step 6: Final answer
    x = 42,972.89

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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.