Home / 68,275.75-102,419.09-52,288.33

Finding the Fourth Proportional to 68,275.75, 102,419.09 and 52,288.33

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Solution

The fourth proportional to 68,275.75, 102,419.09 and 52,288.33 is: 78,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,275.75 : 102,419.09 = 52,288.33 : x
  2. Step 2: Convert to fraction form
    68,275.75/102,419.09 = 52,288.33/x
  3. Step 3: Cross multiply
    68,275.75x = 102,419.09 × 52,288.33
  4. Step 4: Simplify right side
    68,275.75x = 5,355,322,402.68
  5. Step 5: Solve for x
    x = 5,355,322,402.68/68,275.75
  6. Step 6: Final answer
    x = 78,436.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.