Home / 83,162.28-114,629.14-64,981.24

Finding the Fourth Proportional to 83,162.28, 114,629.14 and 64,981.24

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Solution

The fourth proportional to 83,162.28, 114,629.14 and 64,981.24 is: 89,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,162.28 : 114,629.14 = 64,981.24 : x
  2. Step 2: Convert to fraction form
    83,162.28/114,629.14 = 64,981.24/x
  3. Step 3: Cross multiply
    83,162.28x = 114,629.14 × 64,981.24
  4. Step 4: Simplify right side
    83,162.28x = 7,448,743,657.33
  5. Step 5: Solve for x
    x = 7,448,743,657.33/83,162.28
  6. Step 6: Final answer
    x = 89,568.78

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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.