Home / 66,562.20-99,843.30-42,942.60

Finding the Fourth Proportional to 66,562.20, 99,843.30 and 42,942.60

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Solution

The fourth proportional to 66,562.20, 99,843.30 and 42,942.60 is: 64,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,562.20 : 99,843.30 = 42,942.60 : x
  2. Step 2: Convert to fraction form
    66,562.20/99,843.30 = 42,942.60/x
  3. Step 3: Cross multiply
    66,562.20x = 99,843.30 × 42,942.60
  4. Step 4: Simplify right side
    66,562.20x = 4,287,530,894.58
  5. Step 5: Solve for x
    x = 4,287,530,894.58/66,562.20
  6. Step 6: Final answer
    x = 64,413.90

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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.