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Finding the Fourth Proportional to 54,819.57, 82,239.72 and 17,389.06

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Solution

The fourth proportional to 54,819.57, 82,239.72 and 17,389.06 is: 26,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,819.57 : 82,239.72 = 17,389.06 : x
  2. Step 2: Convert to fraction form
    54,819.57/82,239.72 = 17,389.06/x
  3. Step 3: Cross multiply
    54,819.57x = 82,239.72 × 17,389.06
  4. Step 4: Simplify right side
    54,819.57x = 1,430,071,463.05
  5. Step 5: Solve for x
    x = 1,430,071,463.05/54,819.57
  6. Step 6: Final answer
    x = 26,086.88

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1.5x scale

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.