Home / 40,769.58-61,195.83-28,120.21

Finding the Fourth Proportional to 40,769.58, 61,195.83 and 28,120.21

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Solution

The fourth proportional to 40,769.58, 61,195.83 and 28,120.21 is: 42,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,769.58 : 61,195.83 = 28,120.21 : x
  2. Step 2: Convert to fraction form
    40,769.58/61,195.83 = 28,120.21/x
  3. Step 3: Cross multiply
    40,769.58x = 61,195.83 × 28,120.21
  4. Step 4: Simplify right side
    40,769.58x = 1,720,839,755.60
  5. Step 5: Solve for x
    x = 1,720,839,755.60/40,769.58
  6. Step 6: Final answer
    x = 42,208.92

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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.