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Finding the Fourth Proportional to 54,299.62, 81,448.62 and 27,989.20

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Solution

The fourth proportional to 54,299.62, 81,448.62 and 27,989.20 is: 41,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,299.62 : 81,448.62 = 27,989.20 : x
  2. Step 2: Convert to fraction form
    54,299.62/81,448.62 = 27,989.20/x
  3. Step 3: Cross multiply
    54,299.62x = 81,448.62 × 27,989.20
  4. Step 4: Simplify right side
    54,299.62x = 2,279,681,714.90
  5. Step 5: Solve for x
    x = 2,279,681,714.90/54,299.62
  6. Step 6: Final answer
    x = 41,983.38

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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.