Home / 84,109.72-126,187.26-27,958.90

Finding the Fourth Proportional to 84,109.72, 126,187.26 and 27,958.90

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Solution

The fourth proportional to 84,109.72, 126,187.26 and 27,958.90 is: 41,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,109.72 : 126,187.26 = 27,958.90 : x
  2. Step 2: Convert to fraction form
    84,109.72/126,187.26 = 27,958.90/x
  3. Step 3: Cross multiply
    84,109.72x = 126,187.26 × 27,958.90
  4. Step 4: Simplify right side
    84,109.72x = 3,528,056,983.61
  5. Step 5: Solve for x
    x = 3,528,056,983.61/84,109.72
  6. Step 6: Final answer
    x = 41,945.89

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1.5x scale

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.