Home / 80,142.30-110,561.58-48,293.10

Finding the Fourth Proportional to 80,142.30, 110,561.58 and 48,293.10

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Solution

The fourth proportional to 80,142.30, 110,561.58 and 48,293.10 is: 66,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142.30 : 110,561.58 = 48,293.10 : x
  2. Step 2: Convert to fraction form
    80,142.30/110,561.58 = 48,293.10/x
  3. Step 3: Cross multiply
    80,142.30x = 110,561.58 × 48,293.10
  4. Step 4: Simplify right side
    80,142.30x = 5,339,361,439.10
  5. Step 5: Solve for x
    x = 5,339,361,439.10/80,142.30
  6. Step 6: Final answer
    x = 66,623.51

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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.