Home / 84,822.12-127,208.70-34,221.16

Finding the Fourth Proportional to 84,822.12, 127,208.70 and 34,221.16

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Solution

The fourth proportional to 84,822.12, 127,208.70 and 34,221.16 is: 51,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,822.12 : 127,208.70 = 34,221.16 : x
  2. Step 2: Convert to fraction form
    84,822.12/127,208.70 = 34,221.16/x
  3. Step 3: Cross multiply
    84,822.12x = 127,208.70 × 34,221.16
  4. Step 4: Simplify right side
    84,822.12x = 4,353,229,276.09
  5. Step 5: Solve for x
    x = 4,353,229,276.09/84,822.12
  6. Step 6: Final answer
    x = 51,321.86

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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.