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Finding the Fourth Proportional to 66,912.96, 100,384.23 and 22,538.28

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Solution

The fourth proportional to 66,912.96, 100,384.23 and 22,538.28 is: 33,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,912.96 : 100,384.23 = 22,538.28 : x
  2. Step 2: Convert to fraction form
    66,912.96/100,384.23 = 22,538.28/x
  3. Step 3: Cross multiply
    66,912.96x = 100,384.23 × 22,538.28
  4. Step 4: Simplify right side
    66,912.96x = 2,262,487,883.32
  5. Step 5: Solve for x
    x = 2,262,487,883.32/66,912.96
  6. Step 6: Final answer
    x = 33,812.40

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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.