Home / 57,716.10-86,569.79-20,276.51

Finding the Fourth Proportional to 57,716.10, 86,569.79 and 20,276.51

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Solution

The fourth proportional to 57,716.10, 86,569.79 and 20,276.51 is: 30,413.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,716.10 : 86,569.79 = 20,276.51 : x
  2. Step 2: Convert to fraction form
    57,716.10/86,569.79 = 20,276.51/x
  3. Step 3: Cross multiply
    57,716.10x = 86,569.79 × 20,276.51
  4. Step 4: Simplify right side
    57,716.10x = 1,755,332,678.40
  5. Step 5: Solve for x
    x = 1,755,332,678.40/57,716.10
  6. Step 6: Final answer
    x = 30,413.22

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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.