Home / 57,705.77-86,389.93-52,171.85

Finding the Fourth Proportional to 57,705.77, 86,389.93 and 52,171.85

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Solution

The fourth proportional to 57,705.77, 86,389.93 and 52,171.85 is: 78,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,705.77 : 86,389.93 = 52,171.85 : x
  2. Step 2: Convert to fraction form
    57,705.77/86,389.93 = 52,171.85/x
  3. Step 3: Cross multiply
    57,705.77x = 86,389.93 × 52,171.85
  4. Step 4: Simplify right side
    57,705.77x = 4,507,121,907.09
  5. Step 5: Solve for x
    x = 4,507,121,907.09/57,705.77
  6. Step 6: Final answer
    x = 78,105.23

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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.