Home / 84,856.19-127,300.68-28,705.43

Finding the Fourth Proportional to 84,856.19, 127,300.68 and 28,705.43

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Solution

The fourth proportional to 84,856.19, 127,300.68 and 28,705.43 is: 43,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,856.19 : 127,300.68 = 28,705.43 : x
  2. Step 2: Convert to fraction form
    84,856.19/127,300.68 = 28,705.43/x
  3. Step 3: Cross multiply
    84,856.19x = 127,300.68 × 28,705.43
  4. Step 4: Simplify right side
    84,856.19x = 3,654,220,122.19
  5. Step 5: Solve for x
    x = 3,654,220,122.19/84,856.19
  6. Step 6: Final answer
    x = 43,063.69

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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.