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Finding the Fourth Proportional to 85,363.97, 127,935.23 and 57,241.88

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Solution

The fourth proportional to 85,363.97, 127,935.23 and 57,241.88 is: 85,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,363.97 : 127,935.23 = 57,241.88 : x
  2. Step 2: Convert to fraction form
    85,363.97/127,935.23 = 57,241.88/x
  3. Step 3: Cross multiply
    85,363.97x = 127,935.23 × 57,241.88
  4. Step 4: Simplify right side
    85,363.97x = 7,323,252,637.30
  5. Step 5: Solve for x
    x = 7,323,252,637.30/85,363.97
  6. Step 6: Final answer
    x = 85,788.57

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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.