Home / 80,880.76-111,615.89-46,909.38

Finding the Fourth Proportional to 80,880.76, 111,615.89 and 46,909.38

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Solution

The fourth proportional to 80,880.76, 111,615.89 and 46,909.38 is: 64,735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,880.76 : 111,615.89 = 46,909.38 : x
  2. Step 2: Convert to fraction form
    80,880.76/111,615.89 = 46,909.38/x
  3. Step 3: Cross multiply
    80,880.76x = 111,615.89 × 46,909.38
  4. Step 4: Simplify right side
    80,880.76x = 5,235,832,198.05
  5. Step 5: Solve for x
    x = 5,235,832,198.05/80,880.76
  6. Step 6: Final answer
    x = 64,735.20

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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.