Home / 48,390.48-66,786.20-29,538.56

Finding the Fourth Proportional to 48,390.48, 66,786.20 and 29,538.56

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Solution

The fourth proportional to 48,390.48, 66,786.20 and 29,538.56 is: 40,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,390.48 : 66,786.20 = 29,538.56 : x
  2. Step 2: Convert to fraction form
    48,390.48/66,786.20 = 29,538.56/x
  3. Step 3: Cross multiply
    48,390.48x = 66,786.20 × 29,538.56
  4. Step 4: Simplify right side
    48,390.48x = 1,972,768,175.87
  5. Step 5: Solve for x
    x = 1,972,768,175.87/48,390.48
  6. Step 6: Final answer
    x = 40,767.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.