Home / 80,479.14-111,064.10-48,629.58

Finding the Fourth Proportional to 80,479.14, 111,064.10 and 48,629.58

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Solution

The fourth proportional to 80,479.14, 111,064.10 and 48,629.58 is: 67,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,479.14 : 111,064.10 = 48,629.58 : x
  2. Step 2: Convert to fraction form
    80,479.14/111,064.10 = 48,629.58/x
  3. Step 3: Cross multiply
    80,479.14x = 111,064.10 × 48,629.58
  4. Step 4: Simplify right side
    80,479.14x = 5,401,000,292.93
  5. Step 5: Solve for x
    x = 5,401,000,292.93/80,479.14
  6. Step 6: Final answer
    x = 67,110.56

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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.