Home / 51,441.23-70,991.65-28,778.87

Finding the Fourth Proportional to 51,441.23, 70,991.65 and 28,778.87

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Solution

The fourth proportional to 51,441.23, 70,991.65 and 28,778.87 is: 39,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,441.23 : 70,991.65 = 28,778.87 : x
  2. Step 2: Convert to fraction form
    51,441.23/70,991.65 = 28,778.87/x
  3. Step 3: Cross multiply
    51,441.23x = 70,991.65 × 28,778.87
  4. Step 4: Simplify right side
    51,441.23x = 2,043,059,377.70
  5. Step 5: Solve for x
    x = 2,043,059,377.70/51,441.23
  6. Step 6: Final answer
    x = 39,716.38

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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.