Home / 80,621.68-111,256-44,811.36

Finding the Fourth Proportional to 80,621.68, 111,256 and 44,811.36

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Solution

The fourth proportional to 80,621.68, 111,256 and 44,811.36 is: 61,838.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,621.68 : 111,256 = 44,811.36 : x
  2. Step 2: Convert to fraction form
    80,621.68/111,256 = 44,811.36/x
  3. Step 3: Cross multiply
    80,621.68x = 111,256 × 44,811.36
  4. Step 4: Simplify right side
    80,621.68x = 4,985,532,668.16
  5. Step 5: Solve for x
    x = 4,985,532,668.16/80,621.68
  6. Step 6: Final answer
    x = 61,838.61

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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.