Home / 68,920.90-95,112.97-38,706.87

Finding the Fourth Proportional to 68,920.90, 95,112.97 and 38,706.87

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Solution

The fourth proportional to 68,920.90, 95,112.97 and 38,706.87 is: 53,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,920.90 : 95,112.97 = 38,706.87 : x
  2. Step 2: Convert to fraction form
    68,920.90/95,112.97 = 38,706.87/x
  3. Step 3: Cross multiply
    68,920.90x = 95,112.97 × 38,706.87
  4. Step 4: Simplify right side
    68,920.90x = 3,681,525,056.81
  5. Step 5: Solve for x
    x = 3,681,525,056.81/68,920.90
  6. Step 6: Final answer
    x = 53,416.67

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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.