Home / 57,571.08-86,359.72-18,131.28

Finding the Fourth Proportional to 57,571.08, 86,359.72 and 18,131.28

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Solution

The fourth proportional to 57,571.08, 86,359.72 and 18,131.28 is: 27,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,571.08 : 86,359.72 = 18,131.28 : x
  2. Step 2: Convert to fraction form
    57,571.08/86,359.72 = 18,131.28/x
  3. Step 3: Cross multiply
    57,571.08x = 86,359.72 × 18,131.28
  4. Step 4: Simplify right side
    57,571.08x = 1,565,812,264.04
  5. Step 5: Solve for x
    x = 1,565,812,264.04/57,571.08
  6. Step 6: Final answer
    x = 27,197.90

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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.