Home / 80,969.04-111,738.96-45,160.56

Finding the Fourth Proportional to 80,969.04, 111,738.96 and 45,160.56

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Solution

The fourth proportional to 80,969.04, 111,738.96 and 45,160.56 is: 62,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,969.04 : 111,738.96 = 45,160.56 : x
  2. Step 2: Convert to fraction form
    80,969.04/111,738.96 = 45,160.56/x
  3. Step 3: Cross multiply
    80,969.04x = 111,738.96 × 45,160.56
  4. Step 4: Simplify right side
    80,969.04x = 5,046,194,007.42
  5. Step 5: Solve for x
    x = 5,046,194,007.42/80,969.04
  6. Step 6: Final answer
    x = 62,322.51

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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.