Home / 79,679.32-109,957.52-43,869.33

Finding the Fourth Proportional to 79,679.32, 109,957.52 and 43,869.33

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Solution

The fourth proportional to 79,679.32, 109,957.52 and 43,869.33 is: 60,539.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,679.32 : 109,957.52 = 43,869.33 : x
  2. Step 2: Convert to fraction form
    79,679.32/109,957.52 = 43,869.33/x
  3. Step 3: Cross multiply
    79,679.32x = 109,957.52 × 43,869.33
  4. Step 4: Simplify right side
    79,679.32x = 4,823,762,840.53
  5. Step 5: Solve for x
    x = 4,823,762,840.53/79,679.32
  6. Step 6: Final answer
    x = 60,539.71

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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.