Home / 83,942.75-125,914.13-28,538.75

Finding the Fourth Proportional to 83,942.75, 125,914.13 and 28,538.75

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Solution

The fourth proportional to 83,942.75, 125,914.13 and 28,538.75 is: 42,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,942.75 : 125,914.13 = 28,538.75 : x
  2. Step 2: Convert to fraction form
    83,942.75/125,914.13 = 28,538.75/x
  3. Step 3: Cross multiply
    83,942.75x = 125,914.13 × 28,538.75
  4. Step 4: Simplify right side
    83,942.75x = 3,593,431,734.84
  5. Step 5: Solve for x
    x = 3,593,431,734.84/83,942.75
  6. Step 6: Final answer
    x = 42,808.13

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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.