Home / 80,280.32-110,790.72-48,448.64

Finding the Fourth Proportional to 80,280.32, 110,790.72 and 48,448.64

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Solution

The fourth proportional to 80,280.32, 110,790.72 and 48,448.64 is: 66,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,280.32 : 110,790.72 = 48,448.64 : x
  2. Step 2: Convert to fraction form
    80,280.32/110,790.72 = 48,448.64/x
  3. Step 3: Cross multiply
    80,280.32x = 110,790.72 × 48,448.64
  4. Step 4: Simplify right side
    80,280.32x = 5,367,659,708.62
  5. Step 5: Solve for x
    x = 5,367,659,708.62/80,280.32
  6. Step 6: Final answer
    x = 66,861.46

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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.