Home / 83,710.22-115,550.43-55,425.02

Finding the Fourth Proportional to 83,710.22, 115,550.43 and 55,425.02

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Solution

The fourth proportional to 83,710.22, 115,550.43 and 55,425.02 is: 76,506.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,710.22 : 115,550.43 = 55,425.02 : x
  2. Step 2: Convert to fraction form
    83,710.22/115,550.43 = 55,425.02/x
  3. Step 3: Cross multiply
    83,710.22x = 115,550.43 × 55,425.02
  4. Step 4: Simplify right side
    83,710.22x = 6,404,384,893.76
  5. Step 5: Solve for x
    x = 6,404,384,893.76/83,710.22
  6. Step 6: Final answer
    x = 76,506.61

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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.