Home / 81,586.87-112,588.14-45,286.21

Finding the Fourth Proportional to 81,586.87, 112,588.14 and 45,286.21

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Solution

The fourth proportional to 81,586.87, 112,588.14 and 45,286.21 is: 62,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586.87 : 112,588.14 = 45,286.21 : x
  2. Step 2: Convert to fraction form
    81,586.87/112,588.14 = 45,286.21/x
  3. Step 3: Cross multiply
    81,586.87x = 112,588.14 × 45,286.21
  4. Step 4: Simplify right side
    81,586.87x = 5,098,690,151.55
  5. Step 5: Solve for x
    x = 5,098,690,151.55/81,586.87
  6. Step 6: Final answer
    x = 62,494.00

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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.