Home / 79,079.24-109,128.42-43,268.87

Finding the Fourth Proportional to 79,079.24, 109,128.42 and 43,268.87

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Solution

The fourth proportional to 79,079.24, 109,128.42 and 43,268.87 is: 59,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,079.24 : 109,128.42 = 43,268.87 : x
  2. Step 2: Convert to fraction form
    79,079.24/109,128.42 = 43,268.87/x
  3. Step 3: Cross multiply
    79,079.24x = 109,128.42 × 43,268.87
  4. Step 4: Simplify right side
    79,079.24x = 4,721,862,872.64
  5. Step 5: Solve for x
    x = 4,721,862,872.64/79,079.24
  6. Step 6: Final answer
    x = 59,710.53

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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.