Home / 79,913.18-110,362.30-66,350.46

Finding the Fourth Proportional to 79,913.18, 110,362.30 and 66,350.46

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Solution

The fourth proportional to 79,913.18, 110,362.30 and 66,350.46 is: 91,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,913.18 : 110,362.30 = 66,350.46 : x
  2. Step 2: Convert to fraction form
    79,913.18/110,362.30 = 66,350.46/x
  3. Step 3: Cross multiply
    79,913.18x = 110,362.30 × 66,350.46
  4. Step 4: Simplify right side
    79,913.18x = 7,322,589,371.66
  5. Step 5: Solve for x
    x = 7,322,589,371.66/79,913.18
  6. Step 6: Final answer
    x = 91,631.81

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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.