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Finding the Fourth Proportional to 66,663.86, 100,000.94 and 22,290.80

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Solution

The fourth proportional to 66,663.86, 100,000.94 and 22,290.80 is: 33,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,663.86 : 100,000.94 = 22,290.80 : x
  2. Step 2: Convert to fraction form
    66,663.86/100,000.94 = 22,290.80/x
  3. Step 3: Cross multiply
    66,663.86x = 100,000.94 × 22,290.80
  4. Step 4: Simplify right side
    66,663.86x = 2,229,100,341.89
  5. Step 5: Solve for x
    x = 2,229,100,341.89/66,663.86
  6. Step 6: Final answer
    x = 33,437.92

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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.