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Finding the Fourth Proportional to 66,885.41, 100,338.50 and 22,508.71

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Solution

The fourth proportional to 66,885.41, 100,338.50 and 22,508.71 is: 33,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,885.41 : 100,338.50 = 22,508.71 : x
  2. Step 2: Convert to fraction form
    66,885.41/100,338.50 = 22,508.71/x
  3. Step 3: Cross multiply
    66,885.41x = 100,338.50 × 22,508.71
  4. Step 4: Simplify right side
    66,885.41x = 2,258,490,003.76
  5. Step 5: Solve for x
    x = 2,258,490,003.76/66,885.41
  6. Step 6: Final answer
    x = 33,766.56

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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.