Home / 86,179.14-129,268.75-27,019.43

Finding the Fourth Proportional to 86,179.14, 129,268.75 and 27,019.43

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Solution

The fourth proportional to 86,179.14, 129,268.75 and 27,019.43 is: 40,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,179.14 : 129,268.75 = 27,019.43 : x
  2. Step 2: Convert to fraction form
    86,179.14/129,268.75 = 27,019.43/x
  3. Step 3: Cross multiply
    86,179.14x = 129,268.75 × 27,019.43
  4. Step 4: Simplify right side
    86,179.14x = 3,492,767,363.02
  5. Step 5: Solve for x
    x = 3,492,767,363.02/86,179.14
  6. Step 6: Final answer
    x = 40,529.15

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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.