Home / 40,481.05-60,725.63-12,400.78

Finding the Fourth Proportional to 40,481.05, 60,725.63 and 12,400.78

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Solution

The fourth proportional to 40,481.05, 60,725.63 and 12,400.78 is: 18,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,481.05 : 60,725.63 = 12,400.78 : x
  2. Step 2: Convert to fraction form
    40,481.05/60,725.63 = 12,400.78/x
  3. Step 3: Cross multiply
    40,481.05x = 60,725.63 × 12,400.78
  4. Step 4: Simplify right side
    40,481.05x = 753,045,177.99
  5. Step 5: Solve for x
    x = 753,045,177.99/40,481.05
  6. Step 6: Final answer
    x = 18,602.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.