Home / 84,747.89-127,121.70-34,792.79

Finding the Fourth Proportional to 84,747.89, 127,121.70 and 34,792.79

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Solution

The fourth proportional to 84,747.89, 127,121.70 and 34,792.79 is: 52,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,747.89 : 127,121.70 = 34,792.79 : x
  2. Step 2: Convert to fraction form
    84,747.89/127,121.70 = 34,792.79/x
  3. Step 3: Cross multiply
    84,747.89x = 127,121.70 × 34,792.79
  4. Step 4: Simplify right side
    84,747.89x = 4,422,918,930.35
  5. Step 5: Solve for x
    x = 4,422,918,930.35/84,747.89
  6. Step 6: Final answer
    x = 52,189.14

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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.