Home / 80,792.04-120,999.94-77,989.44

Finding the Fourth Proportional to 80,792.04, 120,999.94 and 77,989.44

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Solution

The fourth proportional to 80,792.04, 120,999.94 and 77,989.44 is: 116,802.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,792.04 : 120,999.94 = 77,989.44 : x
  2. Step 2: Convert to fraction form
    80,792.04/120,999.94 = 77,989.44/x
  3. Step 3: Cross multiply
    80,792.04x = 120,999.94 × 77,989.44
  4. Step 4: Simplify right side
    80,792.04x = 9,436,717,560.63
  5. Step 5: Solve for x
    x = 9,436,717,560.63/80,792.04
  6. Step 6: Final answer
    x = 116,802.57

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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.