Home / 85,099.21-117,419.12-49,287.08

Finding the Fourth Proportional to 85,099.21, 117,419.12 and 49,287.08

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Solution

The fourth proportional to 85,099.21, 117,419.12 and 49,287.08 is: 68,005.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,099.21 : 117,419.12 = 49,287.08 : x
  2. Step 2: Convert to fraction form
    85,099.21/117,419.12 = 49,287.08/x
  3. Step 3: Cross multiply
    85,099.21x = 117,419.12 × 49,287.08
  4. Step 4: Simplify right side
    85,099.21x = 5,787,245,792.91
  5. Step 5: Solve for x
    x = 5,787,245,792.91/85,099.21
  6. Step 6: Final answer
    x = 68,005.87

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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.