Home / 77,221.20-115,787.44-41,153.25

Finding the Fourth Proportional to 77,221.20, 115,787.44 and 41,153.25

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Solution

The fourth proportional to 77,221.20, 115,787.44 and 41,153.25 is: 61,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,221.20 : 115,787.44 = 41,153.25 : x
  2. Step 2: Convert to fraction form
    77,221.20/115,787.44 = 41,153.25/x
  3. Step 3: Cross multiply
    77,221.20x = 115,787.44 × 41,153.25
  4. Step 4: Simplify right side
    77,221.20x = 4,765,029,068.03
  5. Step 5: Solve for x
    x = 4,765,029,068.03/77,221.20
  6. Step 6: Final answer
    x = 61,706.23

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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.