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Finding the Fourth Proportional to 84,960, 127,454.58 and 25,801.65

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Solution

The fourth proportional to 84,960, 127,454.58 and 25,801.65 is: 38,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,960 : 127,454.58 = 25,801.65 : x
  2. Step 2: Convert to fraction form
    84,960/127,454.58 = 25,801.65/x
  3. Step 3: Cross multiply
    84,960x = 127,454.58 × 25,801.65
  4. Step 4: Simplify right side
    84,960x = 3,288,538,464.06
  5. Step 5: Solve for x
    x = 3,288,538,464.06/84,960
  6. Step 6: Final answer
    x = 38,706.90

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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.