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Finding the Fourth Proportional to 82,361.96, 123,679.62 and 51,394.04

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Solution

The fourth proportional to 82,361.96, 123,679.62 and 51,394.04 is: 77,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,361.96 : 123,679.62 = 51,394.04 : x
  2. Step 2: Convert to fraction form
    82,361.96/123,679.62 = 51,394.04/x
  3. Step 3: Cross multiply
    82,361.96x = 123,679.62 × 51,394.04
  4. Step 4: Simplify right side
    82,361.96x = 6,356,395,337.46
  5. Step 5: Solve for x
    x = 6,356,395,337.46/82,361.96
  6. Step 6: Final answer
    x = 77,176.35

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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.