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Finding the Fourth Proportional to 66,712.82, 100,071.05 and 22,331.30

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Solution

The fourth proportional to 66,712.82, 100,071.05 and 22,331.30 is: 33,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,712.82 : 100,071.05 = 22,331.30 : x
  2. Step 2: Convert to fraction form
    66,712.82/100,071.05 = 22,331.30/x
  3. Step 3: Cross multiply
    66,712.82x = 100,071.05 × 22,331.30
  4. Step 4: Simplify right side
    66,712.82x = 2,234,716,026.85
  5. Step 5: Solve for x
    x = 2,234,716,026.85/66,712.82
  6. Step 6: Final answer
    x = 33,497.55

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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.