Home / 56,721.24-85,075.36-15,171.48

Finding the Fourth Proportional to 56,721.24, 85,075.36 and 15,171.48

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Solution

The fourth proportional to 56,721.24, 85,075.36 and 15,171.48 is: 22,755.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.24 : 85,075.36 = 15,171.48 : x
  2. Step 2: Convert to fraction form
    56,721.24/85,075.36 = 15,171.48/x
  3. Step 3: Cross multiply
    56,721.24x = 85,075.36 × 15,171.48
  4. Step 4: Simplify right side
    56,721.24x = 1,290,719,122.73
  5. Step 5: Solve for x
    x = 1,290,719,122.73/56,721.24
  6. Step 6: Final answer
    x = 22,755.48

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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.