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Finding the Fourth Proportional to 66,663.22, 100,000.15 and 22,290.20

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Solution

The fourth proportional to 66,663.22, 100,000.15 and 22,290.20 is: 33,437.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,663.22 : 100,000.15 = 22,290.20 : x
  2. Step 2: Convert to fraction form
    66,663.22/100,000.15 = 22,290.20/x
  3. Step 3: Cross multiply
    66,663.22x = 100,000.15 × 22,290.20
  4. Step 4: Simplify right side
    66,663.22x = 2,229,023,537.80
  5. Step 5: Solve for x
    x = 2,229,023,537.80/66,663.22
  6. Step 6: Final answer
    x = 33,437.08

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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.