Home / 57,760.36-86,643.62-18,320.51

Finding the Fourth Proportional to 57,760.36, 86,643.62 and 18,320.51

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Solution

The fourth proportional to 57,760.36, 86,643.62 and 18,320.51 is: 27,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,760.36 : 86,643.62 = 18,320.51 : x
  2. Step 2: Convert to fraction form
    57,760.36/86,643.62 = 18,320.51/x
  3. Step 3: Cross multiply
    57,760.36x = 86,643.62 × 18,320.51
  4. Step 4: Simplify right side
    57,760.36x = 1,587,355,500.35
  5. Step 5: Solve for x
    x = 1,587,355,500.35/57,760.36
  6. Step 6: Final answer
    x = 27,481.75

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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.