Home / 87,836.67-121,214.64-47,550.43

Finding the Fourth Proportional to 87,836.67, 121,214.64 and 47,550.43

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Solution

The fourth proportional to 87,836.67, 121,214.64 and 47,550.43 is: 65,619.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.67 : 121,214.64 = 47,550.43 : x
  2. Step 2: Convert to fraction form
    87,836.67/121,214.64 = 47,550.43/x
  3. Step 3: Cross multiply
    87,836.67x = 121,214.64 × 47,550.43
  4. Step 4: Simplify right side
    87,836.67x = 5,763,807,701.69
  5. Step 5: Solve for x
    x = 5,763,807,701.69/87,836.67
  6. Step 6: Final answer
    x = 65,619.61

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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.