Home / 85,320.97-127,982.14-55,924.96

Finding the Fourth Proportional to 85,320.97, 127,982.14 and 55,924.96

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Solution

The fourth proportional to 85,320.97, 127,982.14 and 55,924.96 is: 83,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,320.97 : 127,982.14 = 55,924.96 : x
  2. Step 2: Convert to fraction form
    85,320.97/127,982.14 = 55,924.96/x
  3. Step 3: Cross multiply
    85,320.97x = 127,982.14 × 55,924.96
  4. Step 4: Simplify right side
    85,320.97x = 7,157,396,060.21
  5. Step 5: Solve for x
    x = 7,157,396,060.21/85,320.97
  6. Step 6: Final answer
    x = 83,887.89

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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.