Home / 85,149.08-117,505.08-49,338.32

Finding the Fourth Proportional to 85,149.08, 117,505.08 and 49,338.32

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Solution

The fourth proportional to 85,149.08, 117,505.08 and 49,338.32 is: 68,086.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,149.08 : 117,505.08 = 49,338.32 : x
  2. Step 2: Convert to fraction form
    85,149.08/117,505.08 = 49,338.32/x
  3. Step 3: Cross multiply
    85,149.08x = 117,505.08 × 49,338.32
  4. Step 4: Simplify right side
    85,149.08x = 5,797,503,238.67
  5. Step 5: Solve for x
    x = 5,797,503,238.67/85,149.08
  6. Step 6: Final answer
    x = 68,086.50

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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.