Home / 68,528.87-94,581.53-39,865.17

Finding the Fourth Proportional to 68,528.87, 94,581.53 and 39,865.17

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Solution

The fourth proportional to 68,528.87, 94,581.53 and 39,865.17 is: 55,020.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528.87 : 94,581.53 = 39,865.17 : x
  2. Step 2: Convert to fraction form
    68,528.87/94,581.53 = 39,865.17/x
  3. Step 3: Cross multiply
    68,528.87x = 94,581.53 × 39,865.17
  4. Step 4: Simplify right side
    68,528.87x = 3,770,508,299.40
  5. Step 5: Solve for x
    x = 3,770,508,299.40/68,528.87
  6. Step 6: Final answer
    x = 55,020.73

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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.