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Finding the Fourth Proportional to 66,679.28, 100,019.04 and 27,236.40

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Solution

The fourth proportional to 66,679.28, 100,019.04 and 27,236.40 is: 40,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,679.28 : 100,019.04 = 27,236.40 : x
  2. Step 2: Convert to fraction form
    66,679.28/100,019.04 = 27,236.40/x
  3. Step 3: Cross multiply
    66,679.28x = 100,019.04 × 27,236.40
  4. Step 4: Simplify right side
    66,679.28x = 2,724,158,581.06
  5. Step 5: Solve for x
    x = 2,724,158,581.06/66,679.28
  6. Step 6: Final answer
    x = 40,854.65

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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.