Home / 78,683.24-117,884.92-45,334.42

Finding the Fourth Proportional to 78,683.24, 117,884.92 and 45,334.42

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Solution

The fourth proportional to 78,683.24, 117,884.92 and 45,334.42 is: 67,921.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,683.24 : 117,884.92 = 45,334.42 : x
  2. Step 2: Convert to fraction form
    78,683.24/117,884.92 = 45,334.42/x
  3. Step 3: Cross multiply
    78,683.24x = 117,884.92 × 45,334.42
  4. Step 4: Simplify right side
    78,683.24x = 5,344,244,474.95
  5. Step 5: Solve for x
    x = 5,344,244,474.95/78,683.24
  6. Step 6: Final answer
    x = 67,921.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.