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Finding the Fourth Proportional to 65,422.70, 90,291.75 and 44,200.70

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Solution

The fourth proportional to 65,422.70, 90,291.75 and 44,200.70 is: 61,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,422.70 : 90,291.75 = 44,200.70 : x
  2. Step 2: Convert to fraction form
    65,422.70/90,291.75 = 44,200.70/x
  3. Step 3: Cross multiply
    65,422.70x = 90,291.75 × 44,200.70
  4. Step 4: Simplify right side
    65,422.70x = 3,990,958,554.23
  5. Step 5: Solve for x
    x = 3,990,958,554.23/65,422.70
  6. Step 6: Final answer
    x = 61,002.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.