Home / 85,217.28-117,600.24-49,428.48

Finding the Fourth Proportional to 85,217.28, 117,600.24 and 49,428.48

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Solution

The fourth proportional to 85,217.28, 117,600.24 and 49,428.48 is: 68,211.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,217.28 : 117,600.24 = 49,428.48 : x
  2. Step 2: Convert to fraction form
    85,217.28/117,600.24 = 49,428.48/x
  3. Step 3: Cross multiply
    85,217.28x = 117,600.24 × 49,428.48
  4. Step 4: Simplify right side
    85,217.28x = 5,812,801,110.84
  5. Step 5: Solve for x
    x = 5,812,801,110.84/85,217.28
  6. Step 6: Final answer
    x = 68,211.53

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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.