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Finding the Fourth Proportional to 78,907, 118,381.02 and 23,503

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Solution

The fourth proportional to 78,907, 118,381.02 and 23,503 is: 35,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,907 : 118,381.02 = 23,503 : x
  2. Step 2: Convert to fraction form
    78,907/118,381.02 = 23,503/x
  3. Step 3: Cross multiply
    78,907x = 118,381.02 × 23,503
  4. Step 4: Simplify right side
    78,907x = 2,782,309,113.06
  5. Step 5: Solve for x
    x = 2,782,309,113.06/78,907
  6. Step 6: Final answer
    x = 35,260.61

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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.