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Finding the Fourth Proportional to 67,235.80, 100,853.70 and 42,352.60

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Solution

The fourth proportional to 67,235.80, 100,853.70 and 42,352.60 is: 63,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,235.80 : 100,853.70 = 42,352.60 : x
  2. Step 2: Convert to fraction form
    67,235.80/100,853.70 = 42,352.60/x
  3. Step 3: Cross multiply
    67,235.80x = 100,853.70 × 42,352.60
  4. Step 4: Simplify right side
    67,235.80x = 4,271,416,414.62
  5. Step 5: Solve for x
    x = 4,271,416,414.62/67,235.80
  6. Step 6: Final answer
    x = 63,528.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.