Home / 79,529.46-109,751.01-43,721.78

Finding the Fourth Proportional to 79,529.46, 109,751.01 and 43,721.78

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Solution

The fourth proportional to 79,529.46, 109,751.01 and 43,721.78 is: 60,336.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,529.46 : 109,751.01 = 43,721.78 : x
  2. Step 2: Convert to fraction form
    79,529.46/109,751.01 = 43,721.78/x
  3. Step 3: Cross multiply
    79,529.46x = 109,751.01 × 43,721.78
  4. Step 4: Simplify right side
    79,529.46x = 4,798,508,832.03
  5. Step 5: Solve for x
    x = 4,798,508,832.03/79,529.46
  6. Step 6: Final answer
    x = 60,336.24

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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.