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Finding the Fourth Proportional to 66,761.52, 100,152 and 22,378.32

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Solution

The fourth proportional to 66,761.52, 100,152 and 22,378.32 is: 33,570.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,761.52 : 100,152 = 22,378.32 : x
  2. Step 2: Convert to fraction form
    66,761.52/100,152 = 22,378.32/x
  3. Step 3: Cross multiply
    66,761.52x = 100,152 × 22,378.32
  4. Step 4: Simplify right side
    66,761.52x = 2,241,233,504.64
  5. Step 5: Solve for x
    x = 2,241,233,504.64/66,761.52
  6. Step 6: Final answer
    x = 33,570.74

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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.