Home / 85,696.03-128,513.94-25,706.62

Finding the Fourth Proportional to 85,696.03, 128,513.94 and 25,706.62

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Solution

The fourth proportional to 85,696.03, 128,513.94 and 25,706.62 is: 38,550.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,696.03 : 128,513.94 = 25,706.62 : x
  2. Step 2: Convert to fraction form
    85,696.03/128,513.94 = 25,706.62/x
  3. Step 3: Cross multiply
    85,696.03x = 128,513.94 × 25,706.62
  4. Step 4: Simplify right side
    85,696.03x = 3,303,659,020.28
  5. Step 5: Solve for x
    x = 3,303,659,020.28/85,696.03
  6. Step 6: Final answer
    x = 38,550.90

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1.5x scale

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.