Home / 90,577.44-124,997.60-54,791.20

Finding the Fourth Proportional to 90,577.44, 124,997.60 and 54,791.20

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Solution

The fourth proportional to 90,577.44, 124,997.60 and 54,791.20 is: 75,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,577.44 : 124,997.60 = 54,791.20 : x
  2. Step 2: Convert to fraction form
    90,577.44/124,997.60 = 54,791.20/x
  3. Step 3: Cross multiply
    90,577.44x = 124,997.60 × 54,791.20
  4. Step 4: Simplify right side
    90,577.44x = 6,848,768,501.12
  5. Step 5: Solve for x
    x = 6,848,768,501.12/90,577.44
  6. Step 6: Final answer
    x = 75,612.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.