Home / 80,142.49-110,600.67-48,321.64

Finding the Fourth Proportional to 80,142.49, 110,600.67 and 48,321.64

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Solution

The fourth proportional to 80,142.49, 110,600.67 and 48,321.64 is: 66,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142.49 : 110,600.67 = 48,321.64 : x
  2. Step 2: Convert to fraction form
    80,142.49/110,600.67 = 48,321.64/x
  3. Step 3: Cross multiply
    80,142.49x = 110,600.67 × 48,321.64
  4. Step 4: Simplify right side
    80,142.49x = 5,344,405,759.50
  5. Step 5: Solve for x
    x = 5,344,405,759.50/80,142.49
  6. Step 6: Final answer
    x = 66,686.30

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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.