Home / 77,190.64-115,781.48-29,796.46

Finding the Fourth Proportional to 77,190.64, 115,781.48 and 29,796.46

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Solution

The fourth proportional to 77,190.64, 115,781.48 and 29,796.46 is: 44,692.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,190.64 : 115,781.48 = 29,796.46 : x
  2. Step 2: Convert to fraction form
    77,190.64/115,781.48 = 29,796.46/x
  3. Step 3: Cross multiply
    77,190.64x = 115,781.48 × 29,796.46
  4. Step 4: Simplify right side
    77,190.64x = 3,449,878,237.56
  5. Step 5: Solve for x
    x = 3,449,878,237.56/77,190.64
  6. Step 6: Final answer
    x = 44,692.96

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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.