Home / 66,847.03-92,240.12-39,979.73

Finding the Fourth Proportional to 66,847.03, 92,240.12 and 39,979.73

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Solution

The fourth proportional to 66,847.03, 92,240.12 and 39,979.73 is: 55,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,847.03 : 92,240.12 = 39,979.73 : x
  2. Step 2: Convert to fraction form
    66,847.03/92,240.12 = 39,979.73/x
  3. Step 3: Cross multiply
    66,847.03x = 92,240.12 × 39,979.73
  4. Step 4: Simplify right side
    66,847.03x = 3,687,735,423.32
  5. Step 5: Solve for x
    x = 3,687,735,423.32/66,847.03
  6. Step 6: Final answer
    x = 55,166.78

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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.