Home / 83,688.24-115,441.56-50,134.80

Finding the Fourth Proportional to 83,688.24, 115,441.56 and 50,134.80

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Solution

The fourth proportional to 83,688.24, 115,441.56 and 50,134.80 is: 69,157.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,688.24 : 115,441.56 = 50,134.80 : x
  2. Step 2: Convert to fraction form
    83,688.24/115,441.56 = 50,134.80/x
  3. Step 3: Cross multiply
    83,688.24x = 115,441.56 × 50,134.80
  4. Step 4: Simplify right side
    83,688.24x = 5,787,639,522.29
  5. Step 5: Solve for x
    x = 5,787,639,522.29/83,688.24
  6. Step 6: Final answer
    x = 69,157.14

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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.