Home / 78,912.26-118,396.07-40,943.27

Finding the Fourth Proportional to 78,912.26, 118,396.07 and 40,943.27

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Solution

The fourth proportional to 78,912.26, 118,396.07 and 40,943.27 is: 61,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,912.26 : 118,396.07 = 40,943.27 : x
  2. Step 2: Convert to fraction form
    78,912.26/118,396.07 = 40,943.27/x
  3. Step 3: Cross multiply
    78,912.26x = 118,396.07 × 40,943.27
  4. Step 4: Simplify right side
    78,912.26x = 4,847,522,505.76
  5. Step 5: Solve for x
    x = 4,847,522,505.76/78,912.26
  6. Step 6: Final answer
    x = 61,429.27

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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.