Home / 52,251.38-72,107.11-28,378.45

Finding the Fourth Proportional to 52,251.38, 72,107.11 and 28,378.45

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Solution

The fourth proportional to 52,251.38, 72,107.11 and 28,378.45 is: 39,162.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,251.38 : 72,107.11 = 28,378.45 : x
  2. Step 2: Convert to fraction form
    52,251.38/72,107.11 = 28,378.45/x
  3. Step 3: Cross multiply
    52,251.38x = 72,107.11 × 28,378.45
  4. Step 4: Simplify right side
    52,251.38x = 2,046,288,015.78
  5. Step 5: Solve for x
    x = 2,046,288,015.78/52,251.38
  6. Step 6: Final answer
    x = 39,162.37

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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.