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Finding the Fourth Proportional to 81,206.56, 112,024.02 and 54,350.20

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Solution

The fourth proportional to 81,206.56, 112,024.02 and 54,350.20 is: 74,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206.56 : 112,024.02 = 54,350.20 : x
  2. Step 2: Convert to fraction form
    81,206.56/112,024.02 = 54,350.20/x
  3. Step 3: Cross multiply
    81,206.56x = 112,024.02 × 54,350.20
  4. Step 4: Simplify right side
    81,206.56x = 6,088,527,891.80
  5. Step 5: Solve for x
    x = 6,088,527,891.80/81,206.56
  6. Step 6: Final answer
    x = 74,975.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.