Home / 86,258.28-129,387.42-23,928.78

Finding the Fourth Proportional to 86,258.28, 129,387.42 and 23,928.78

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Solution

The fourth proportional to 86,258.28, 129,387.42 and 23,928.78 is: 35,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,258.28 : 129,387.42 = 23,928.78 : x
  2. Step 2: Convert to fraction form
    86,258.28/129,387.42 = 23,928.78/x
  3. Step 3: Cross multiply
    86,258.28x = 129,387.42 × 23,928.78
  4. Step 4: Simplify right side
    86,258.28x = 3,096,083,107.95
  5. Step 5: Solve for x
    x = 3,096,083,107.95/86,258.28
  6. Step 6: Final answer
    x = 35,893.17

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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.