Home / 85,450.09-117,913.17-49,639.60

Finding the Fourth Proportional to 85,450.09, 117,913.17 and 49,639.60

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Solution

The fourth proportional to 85,450.09, 117,913.17 and 49,639.60 is: 68,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,450.09 : 117,913.17 = 49,639.60 : x
  2. Step 2: Convert to fraction form
    85,450.09/117,913.17 = 49,639.60/x
  3. Step 3: Cross multiply
    85,450.09x = 117,913.17 × 49,639.60
  4. Step 4: Simplify right side
    85,450.09x = 5,853,162,593.53
  5. Step 5: Solve for x
    x = 5,853,162,593.53/85,450.09
  6. Step 6: Final answer
    x = 68,498.03

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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.