Home / 85,451.88-117,757.07-61,533.39

Finding the Fourth Proportional to 85,451.88, 117,757.07 and 61,533.39

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Solution

The fourth proportional to 85,451.88, 117,757.07 and 61,533.39 is: 84,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,451.88 : 117,757.07 = 61,533.39 : x
  2. Step 2: Convert to fraction form
    85,451.88/117,757.07 = 61,533.39/x
  3. Step 3: Cross multiply
    85,451.88x = 117,757.07 × 61,533.39
  4. Step 4: Simplify right side
    85,451.88x = 7,245,991,405.90
  5. Step 5: Solve for x
    x = 7,245,991,405.90/85,451.88
  6. Step 6: Final answer
    x = 84,796.16

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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.