Home / 86,258.08-129,392.28-27,093.75

Finding the Fourth Proportional to 86,258.08, 129,392.28 and 27,093.75

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Solution

The fourth proportional to 86,258.08, 129,392.28 and 27,093.75 is: 40,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,258.08 : 129,392.28 = 27,093.75 : x
  2. Step 2: Convert to fraction form
    86,258.08/129,392.28 = 27,093.75/x
  3. Step 3: Cross multiply
    86,258.08x = 129,392.28 × 27,093.75
  4. Step 4: Simplify right side
    86,258.08x = 3,505,721,439.29
  5. Step 5: Solve for x
    x = 3,505,721,439.29/86,258.08
  6. Step 6: Final answer
    x = 40,642.24

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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.