Home / 57,621.78-86,439.96-18,173.16

Finding the Fourth Proportional to 57,621.78, 86,439.96 and 18,173.16

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Solution

The fourth proportional to 57,621.78, 86,439.96 and 18,173.16 is: 27,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,621.78 : 86,439.96 = 18,173.16 : x
  2. Step 2: Convert to fraction form
    57,621.78/86,439.96 = 18,173.16/x
  3. Step 3: Cross multiply
    57,621.78x = 86,439.96 × 18,173.16
  4. Step 4: Simplify right side
    57,621.78x = 1,570,887,223.47
  5. Step 5: Solve for x
    x = 1,570,887,223.47/57,621.78
  6. Step 6: Final answer
    x = 27,262.04

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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.