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Finding the Fourth Proportional to 84,610.11, 126,825.84 and 28,396.92

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Solution

The fourth proportional to 84,610.11, 126,825.84 and 28,396.92 is: 42,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,610.11 : 126,825.84 = 28,396.92 : x
  2. Step 2: Convert to fraction form
    84,610.11/126,825.84 = 28,396.92/x
  3. Step 3: Cross multiply
    84,610.11x = 126,825.84 × 28,396.92
  4. Step 4: Simplify right side
    84,610.11x = 3,601,463,232.41
  5. Step 5: Solve for x
    x = 3,601,463,232.41/84,610.11
  6. Step 6: Final answer
    x = 42,565.40

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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.