Home / 80,438.81-111,001.78-44,139.44

Finding the Fourth Proportional to 80,438.81, 111,001.78 and 44,139.44

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Solution

The fourth proportional to 80,438.81, 111,001.78 and 44,139.44 is: 60,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,438.81 : 111,001.78 = 44,139.44 : x
  2. Step 2: Convert to fraction form
    80,438.81/111,001.78 = 44,139.44/x
  3. Step 3: Cross multiply
    80,438.81x = 111,001.78 × 44,139.44
  4. Step 4: Simplify right side
    80,438.81x = 4,899,556,575.36
  5. Step 5: Solve for x
    x = 4,899,556,575.36/80,438.81
  6. Step 6: Final answer
    x = 60,910.35

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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.