Home / 79,515.23-109,731.26-43,708.91

Finding the Fourth Proportional to 79,515.23, 109,731.26 and 43,708.91

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Solution

The fourth proportional to 79,515.23, 109,731.26 and 43,708.91 is: 60,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,515.23 : 109,731.26 = 43,708.91 : x
  2. Step 2: Convert to fraction form
    79,515.23/109,731.26 = 43,708.91/x
  3. Step 3: Cross multiply
    79,515.23x = 109,731.26 × 43,708.91
  4. Step 4: Simplify right side
    79,515.23x = 4,796,233,548.98
  5. Step 5: Solve for x
    x = 4,796,233,548.98/79,515.23
  6. Step 6: Final answer
    x = 60,318.43

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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.