Home / 51,550.50-71,138.49-30,331.14

Finding the Fourth Proportional to 51,550.50, 71,138.49 and 30,331.14

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Solution

The fourth proportional to 51,550.50, 71,138.49 and 30,331.14 is: 41,856.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,550.50 : 71,138.49 = 30,331.14 : x
  2. Step 2: Convert to fraction form
    51,550.50/71,138.49 = 30,331.14/x
  3. Step 3: Cross multiply
    51,550.50x = 71,138.49 × 30,331.14
  4. Step 4: Simplify right side
    51,550.50x = 2,157,711,499.58
  5. Step 5: Solve for x
    x = 2,157,711,499.58/51,550.50
  6. Step 6: Final answer
    x = 41,856.27

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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.