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Finding the Fourth Proportional to 54,576, 81,239.04 and 52,027.20

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Solution

The fourth proportional to 54,576, 81,239.04 and 52,027.20 is: 77,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,576 : 81,239.04 = 52,027.20 : x
  2. Step 2: Convert to fraction form
    54,576/81,239.04 = 52,027.20/x
  3. Step 3: Cross multiply
    54,576x = 81,239.04 × 52,027.20
  4. Step 4: Simplify right side
    54,576x = 4,226,639,781.89
  5. Step 5: Solve for x
    x = 4,226,639,781.89/54,576
  6. Step 6: Final answer
    x = 77,445.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.