Home / 80,636.58-111,281.33-44,340.79

Finding the Fourth Proportional to 80,636.58, 111,281.33 and 44,340.79

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Solution

The fourth proportional to 80,636.58, 111,281.33 and 44,340.79 is: 61,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,636.58 : 111,281.33 = 44,340.79 : x
  2. Step 2: Convert to fraction form
    80,636.58/111,281.33 = 44,340.79/x
  3. Step 3: Cross multiply
    80,636.58x = 111,281.33 × 44,340.79
  4. Step 4: Simplify right side
    80,636.58x = 4,934,301,917.10
  5. Step 5: Solve for x
    x = 4,934,301,917.10/80,636.58
  6. Step 6: Final answer
    x = 61,191.86

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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.