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Finding the Fourth Proportional to 81,800.68, 122,701.02 and 35,049.64

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Solution

The fourth proportional to 81,800.68, 122,701.02 and 35,049.64 is: 52,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,800.68 : 122,701.02 = 35,049.64 : x
  2. Step 2: Convert to fraction form
    81,800.68/122,701.02 = 35,049.64/x
  3. Step 3: Cross multiply
    81,800.68x = 122,701.02 × 35,049.64
  4. Step 4: Simplify right side
    81,800.68x = 4,300,626,578.63
  5. Step 5: Solve for x
    x = 4,300,626,578.63/81,800.68
  6. Step 6: Final answer
    x = 52,574.46

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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.