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Finding the Fourth Proportional to 66,836.29, 100,254.57 and 27,386.32

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Solution

The fourth proportional to 66,836.29, 100,254.57 and 27,386.32 is: 41,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,836.29 : 100,254.57 = 27,386.32 : x
  2. Step 2: Convert to fraction form
    66,836.29/100,254.57 = 27,386.32/x
  3. Step 3: Cross multiply
    66,836.29x = 100,254.57 × 27,386.32
  4. Step 4: Simplify right side
    66,836.29x = 2,745,603,735.48
  5. Step 5: Solve for x
    x = 2,745,603,735.48/66,836.29
  6. Step 6: Final answer
    x = 41,079.54

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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.