Home / 78,918.70-118,395.54-22,754.43

Finding the Fourth Proportional to 78,918.70, 118,395.54 and 22,754.43

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Solution

The fourth proportional to 78,918.70, 118,395.54 and 22,754.43 is: 34,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,918.70 : 118,395.54 = 22,754.43 : x
  2. Step 2: Convert to fraction form
    78,918.70/118,395.54 = 22,754.43/x
  3. Step 3: Cross multiply
    78,918.70x = 118,395.54 × 22,754.43
  4. Step 4: Simplify right side
    78,918.70x = 2,694,023,027.24
  5. Step 5: Solve for x
    x = 2,694,023,027.24/78,918.70
  6. Step 6: Final answer
    x = 34,136.69

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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.