Home / 66,077.45-91,262.55-43,517.28

Finding the Fourth Proportional to 66,077.45, 91,262.55 and 43,517.28

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Solution

The fourth proportional to 66,077.45, 91,262.55 and 43,517.28 is: 60,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,077.45 : 91,262.55 = 43,517.28 : x
  2. Step 2: Convert to fraction form
    66,077.45/91,262.55 = 43,517.28/x
  3. Step 3: Cross multiply
    66,077.45x = 91,262.55 × 43,517.28
  4. Step 4: Simplify right side
    66,077.45x = 3,971,497,941.86
  5. Step 5: Solve for x
    x = 3,971,497,941.86/66,077.45
  6. Step 6: Final answer
    x = 60,103.69

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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.