Home / 57,678.25-86,530.83-19,727.81

Finding the Fourth Proportional to 57,678.25, 86,530.83 and 19,727.81

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Solution

The fourth proportional to 57,678.25, 86,530.83 and 19,727.81 is: 29,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,678.25 : 86,530.83 = 19,727.81 : x
  2. Step 2: Convert to fraction form
    57,678.25/86,530.83 = 19,727.81/x
  3. Step 3: Cross multiply
    57,678.25x = 86,530.83 × 19,727.81
  4. Step 4: Simplify right side
    57,678.25x = 1,707,063,952.72
  5. Step 5: Solve for x
    x = 1,707,063,952.72/57,678.25
  6. Step 6: Final answer
    x = 29,596.32

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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.