Home / 79,216.31-109,318.51-43,407.69

Finding the Fourth Proportional to 79,216.31, 109,318.51 and 43,407.69

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Solution

The fourth proportional to 79,216.31, 109,318.51 and 43,407.69 is: 59,902.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,216.31 : 109,318.51 = 43,407.69 : x
  2. Step 2: Convert to fraction form
    79,216.31/109,318.51 = 43,407.69/x
  3. Step 3: Cross multiply
    79,216.31x = 109,318.51 × 43,407.69
  4. Step 4: Simplify right side
    79,216.31x = 4,745,263,637.66
  5. Step 5: Solve for x
    x = 4,745,263,637.66/79,216.31
  6. Step 6: Final answer
    x = 59,902.61

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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.