Home / 66,403.15-91,633.67-36,187.82

Finding the Fourth Proportional to 66,403.15, 91,633.67 and 36,187.82

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Solution

The fourth proportional to 66,403.15, 91,633.67 and 36,187.82 is: 49,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,403.15 : 91,633.67 = 36,187.82 : x
  2. Step 2: Convert to fraction form
    66,403.15/91,633.67 = 36,187.82/x
  3. Step 3: Cross multiply
    66,403.15x = 91,633.67 × 36,187.82
  4. Step 4: Simplify right side
    66,403.15x = 3,316,022,755.90
  5. Step 5: Solve for x
    x = 3,316,022,755.90/66,403.15
  6. Step 6: Final answer
    x = 49,937.73

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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.