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Finding the Fourth Proportional to 66,937.69, 100,406.86 and 22,564.81

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Solution

The fourth proportional to 66,937.69, 100,406.86 and 22,564.81 is: 33,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,937.69 : 100,406.86 = 22,564.81 : x
  2. Step 2: Convert to fraction form
    66,937.69/100,406.86 = 22,564.81/x
  3. Step 3: Cross multiply
    66,937.69x = 100,406.86 × 22,564.81
  4. Step 4: Simplify right side
    66,937.69x = 2,265,661,787.69
  5. Step 5: Solve for x
    x = 2,265,661,787.69/66,937.69
  6. Step 6: Final answer
    x = 33,847.32

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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.