Home / 78,928.18-118,388.41-29,004.43

Finding the Fourth Proportional to 78,928.18, 118,388.41 and 29,004.43

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Solution

The fourth proportional to 78,928.18, 118,388.41 and 29,004.43 is: 43,505.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,928.18 : 118,388.41 = 29,004.43 : x
  2. Step 2: Convert to fraction form
    78,928.18/118,388.41 = 29,004.43/x
  3. Step 3: Cross multiply
    78,928.18x = 118,388.41 × 29,004.43
  4. Step 4: Simplify right side
    78,928.18x = 3,433,788,350.66
  5. Step 5: Solve for x
    x = 3,433,788,350.66/78,928.18
  6. Step 6: Final answer
    x = 43,505.23

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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.