Home / 78,968.58-118,447.99-26,373.66

Finding the Fourth Proportional to 78,968.58, 118,447.99 and 26,373.66

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Solution

The fourth proportional to 78,968.58, 118,447.99 and 26,373.66 is: 39,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968.58 : 118,447.99 = 26,373.66 : x
  2. Step 2: Convert to fraction form
    78,968.58/118,447.99 = 26,373.66/x
  3. Step 3: Cross multiply
    78,968.58x = 118,447.99 × 26,373.66
  4. Step 4: Simplify right side
    78,968.58x = 3,123,907,015.94
  5. Step 5: Solve for x
    x = 3,123,907,015.94/78,968.58
  6. Step 6: Final answer
    x = 39,558.86

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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.