Home / 66,379.15-99,540.37-30,818.53

Finding the Fourth Proportional to 66,379.15, 99,540.37 and 30,818.53

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Solution

The fourth proportional to 66,379.15, 99,540.37 and 30,818.53 is: 46,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,379.15 : 99,540.37 = 30,818.53 : x
  2. Step 2: Convert to fraction form
    66,379.15/99,540.37 = 30,818.53/x
  3. Step 3: Cross multiply
    66,379.15x = 99,540.37 × 30,818.53
  4. Step 4: Simplify right side
    66,379.15x = 3,067,687,879.06
  5. Step 5: Solve for x
    x = 3,067,687,879.06/66,379.15
  6. Step 6: Final answer
    x = 46,214.63

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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.