Home / 51,981.23-71,734.05-28,107.69

Finding the Fourth Proportional to 51,981.23, 71,734.05 and 28,107.69

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Solution

The fourth proportional to 51,981.23, 71,734.05 and 28,107.69 is: 38,788.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,981.23 : 71,734.05 = 28,107.69 : x
  2. Step 2: Convert to fraction form
    51,981.23/71,734.05 = 28,107.69/x
  3. Step 3: Cross multiply
    51,981.23x = 71,734.05 × 28,107.69
  4. Step 4: Simplify right side
    51,981.23x = 2,016,278,439.84
  5. Step 5: Solve for x
    x = 2,016,278,439.84/51,981.23
  6. Step 6: Final answer
    x = 38,788.59

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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.