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Finding the Fourth Proportional to 51,954.87, 71,697.71 and 28,081.54

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Solution

The fourth proportional to 51,954.87, 71,697.71 and 28,081.54 is: 38,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,954.87 : 71,697.71 = 28,081.54 : x
  2. Step 2: Convert to fraction form
    51,954.87/71,697.71 = 28,081.54/x
  3. Step 3: Cross multiply
    51,954.87x = 71,697.71 × 28,081.54
  4. Step 4: Simplify right side
    51,954.87x = 2,013,381,709.84
  5. Step 5: Solve for x
    x = 2,013,381,709.84/51,954.87
  6. Step 6: Final answer
    x = 38,752.51

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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.