Home / 86,591.28-119,563.62-66,416.22

Finding the Fourth Proportional to 86,591.28, 119,563.62 and 66,416.22

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Solution

The fourth proportional to 86,591.28, 119,563.62 and 66,416.22 is: 91,706.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,591.28 : 119,563.62 = 66,416.22 : x
  2. Step 2: Convert to fraction form
    86,591.28/119,563.62 = 66,416.22/x
  3. Step 3: Cross multiply
    86,591.28x = 119,563.62 × 66,416.22
  4. Step 4: Simplify right side
    86,591.28x = 7,940,963,689.92
  5. Step 5: Solve for x
    x = 7,940,963,689.92/86,591.28
  6. Step 6: Final answer
    x = 91,706.27

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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.