Home / 66,778.08-92,165.04-38,500.08

Finding the Fourth Proportional to 66,778.08, 92,165.04 and 38,500.08

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Solution

The fourth proportional to 66,778.08, 92,165.04 and 38,500.08 is: 53,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,778.08 : 92,165.04 = 38,500.08 : x
  2. Step 2: Convert to fraction form
    66,778.08/92,165.04 = 38,500.08/x
  3. Step 3: Cross multiply
    66,778.08x = 92,165.04 × 38,500.08
  4. Step 4: Simplify right side
    66,778.08x = 3,548,361,413.20
  5. Step 5: Solve for x
    x = 3,548,361,413.20/66,778.08
  6. Step 6: Final answer
    x = 53,136.62

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1.5x scale

Why These Related Problems?

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