Home / 79,745.18-119,642.38-29,830.32

Finding the Fourth Proportional to 79,745.18, 119,642.38 and 29,830.32

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Solution

The fourth proportional to 79,745.18, 119,642.38 and 29,830.32 is: 44,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,745.18 : 119,642.38 = 29,830.32 : x
  2. Step 2: Convert to fraction form
    79,745.18/119,642.38 = 29,830.32/x
  3. Step 3: Cross multiply
    79,745.18x = 119,642.38 × 29,830.32
  4. Step 4: Simplify right side
    79,745.18x = 3,568,970,480.96
  5. Step 5: Solve for x
    x = 3,568,970,480.96/79,745.18
  6. Step 6: Final answer
    x = 44,754.69

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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.