Home / 85,163.48-127,632-45,174.24

Finding the Fourth Proportional to 85,163.48, 127,632 and 45,174.24

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Solution

The fourth proportional to 85,163.48, 127,632 and 45,174.24 is: 67,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,163.48 : 127,632 = 45,174.24 : x
  2. Step 2: Convert to fraction form
    85,163.48/127,632 = 45,174.24/x
  3. Step 3: Cross multiply
    85,163.48x = 127,632 × 45,174.24
  4. Step 4: Simplify right side
    85,163.48x = 5,765,678,599.68
  5. Step 5: Solve for x
    x = 5,765,678,599.68/85,163.48
  6. Step 6: Final answer
    x = 67,701.30

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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.