Home / 86,260.28-129,390.42-23,930.78

Finding the Fourth Proportional to 86,260.28, 129,390.42 and 23,930.78

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Solution

The fourth proportional to 86,260.28, 129,390.42 and 23,930.78 is: 35,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,260.28 : 129,390.42 = 23,930.78 : x
  2. Step 2: Convert to fraction form
    86,260.28/129,390.42 = 23,930.78/x
  3. Step 3: Cross multiply
    86,260.28x = 129,390.42 × 23,930.78
  4. Step 4: Simplify right side
    86,260.28x = 3,096,413,675.13
  5. Step 5: Solve for x
    x = 3,096,413,675.13/86,260.28
  6. Step 6: Final answer
    x = 35,896.17

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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.