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Finding the Fourth Proportional to 84,750.65, 127,167.47 and 34,147.58

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Solution

The fourth proportional to 84,750.65, 127,167.47 and 34,147.58 is: 51,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,750.65 : 127,167.47 = 34,147.58 : x
  2. Step 2: Convert to fraction form
    84,750.65/127,167.47 = 34,147.58/x
  3. Step 3: Cross multiply
    84,750.65x = 127,167.47 × 34,147.58
  4. Step 4: Simplify right side
    84,750.65x = 4,342,460,676.70
  5. Step 5: Solve for x
    x = 4,342,460,676.70/84,750.65
  6. Step 6: Final answer
    x = 51,238.08

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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.