Home / 84,722.19-127,083.30-28,557.61

Finding the Fourth Proportional to 84,722.19, 127,083.30 and 28,557.61

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Solution

The fourth proportional to 84,722.19, 127,083.30 and 28,557.61 is: 42,836.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,722.19 : 127,083.30 = 28,557.61 : x
  2. Step 2: Convert to fraction form
    84,722.19/127,083.30 = 28,557.61/x
  3. Step 3: Cross multiply
    84,722.19x = 127,083.30 × 28,557.61
  4. Step 4: Simplify right side
    84,722.19x = 3,629,195,608.96
  5. Step 5: Solve for x
    x = 3,629,195,608.96/84,722.19
  6. Step 6: Final answer
    x = 42,836.43

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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.