Home / 86,153.49-129,230.35-41,786.78

Finding the Fourth Proportional to 86,153.49, 129,230.35 and 41,786.78

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Solution

The fourth proportional to 86,153.49, 129,230.35 and 41,786.78 is: 62,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,153.49 : 129,230.35 = 41,786.78 : x
  2. Step 2: Convert to fraction form
    86,153.49/129,230.35 = 41,786.78/x
  3. Step 3: Cross multiply
    86,153.49x = 129,230.35 × 41,786.78
  4. Step 4: Simplify right side
    86,153.49x = 5,400,120,204.77
  5. Step 5: Solve for x
    x = 5,400,120,204.77/86,153.49
  6. Step 6: Final answer
    x = 62,680.23

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Double scale
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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.