Home / 85,086.90-117,581.85-63,829.26

Finding the Fourth Proportional to 85,086.90, 117,581.85 and 63,829.26

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Solution

The fourth proportional to 85,086.90, 117,581.85 and 63,829.26 is: 88,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,086.90 : 117,581.85 = 63,829.26 : x
  2. Step 2: Convert to fraction form
    85,086.90/117,581.85 = 63,829.26/x
  3. Step 3: Cross multiply
    85,086.90x = 117,581.85 × 63,829.26
  4. Step 4: Simplify right side
    85,086.90x = 7,505,162,474.93
  5. Step 5: Solve for x
    x = 7,505,162,474.93/85,086.90
  6. Step 6: Final answer
    x = 88,205.85

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1.5x scale

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.