Home / 78,738.66-118,083.73-22,563.69

Finding the Fourth Proportional to 78,738.66, 118,083.73 and 22,563.69

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Solution

The fourth proportional to 78,738.66, 118,083.73 and 22,563.69 is: 33,838.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,738.66 : 118,083.73 = 22,563.69 : x
  2. Step 2: Convert to fraction form
    78,738.66/118,083.73 = 22,563.69/x
  3. Step 3: Cross multiply
    78,738.66x = 118,083.73 × 22,563.69
  4. Step 4: Simplify right side
    78,738.66x = 2,664,403,974.53
  5. Step 5: Solve for x
    x = 2,664,403,974.53/78,738.66
  6. Step 6: Final answer
    x = 33,838.58

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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.