Home / 85,828.14-128,717.64-29,653.56

Finding the Fourth Proportional to 85,828.14, 128,717.64 and 29,653.56

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Solution

The fourth proportional to 85,828.14, 128,717.64 and 29,653.56 is: 44,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,828.14 : 128,717.64 = 29,653.56 : x
  2. Step 2: Convert to fraction form
    85,828.14/128,717.64 = 29,653.56/x
  3. Step 3: Cross multiply
    85,828.14x = 128,717.64 × 29,653.56
  4. Step 4: Simplify right side
    85,828.14x = 3,816,936,260.80
  5. Step 5: Solve for x
    x = 3,816,936,260.80/85,828.14
  6. Step 6: Final answer
    x = 44,471.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.