Home / 54,789.64-82,152.78-21,470.74

Finding the Fourth Proportional to 54,789.64, 82,152.78 and 21,470.74

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Solution

The fourth proportional to 54,789.64, 82,152.78 and 21,470.74 is: 32,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,789.64 : 82,152.78 = 21,470.74 : x
  2. Step 2: Convert to fraction form
    54,789.64/82,152.78 = 21,470.74/x
  3. Step 3: Cross multiply
    54,789.64x = 82,152.78 × 21,470.74
  4. Step 4: Simplify right side
    54,789.64x = 1,763,880,979.66
  5. Step 5: Solve for x
    x = 1,763,880,979.66/54,789.64
  6. Step 6: Final answer
    x = 32,193.70

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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.