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Finding the Fourth Proportional to 84,057.40, 126,101.08 and 27,900.83

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Solution

The fourth proportional to 84,057.40, 126,101.08 and 27,900.83 is: 41,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,057.40 : 126,101.08 = 27,900.83 : x
  2. Step 2: Convert to fraction form
    84,057.40/126,101.08 = 27,900.83/x
  3. Step 3: Cross multiply
    84,057.40x = 126,101.08 × 27,900.83
  4. Step 4: Simplify right side
    84,057.40x = 3,518,324,795.90
  5. Step 5: Solve for x
    x = 3,518,324,795.90/84,057.40
  6. Step 6: Final answer
    x = 41,856.22

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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.