Home / 87,083.39-130,284.87-76,469.15

Finding the Fourth Proportional to 87,083.39, 130,284.87 and 76,469.15

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Solution

The fourth proportional to 87,083.39, 130,284.87 and 76,469.15 is: 114,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,083.39 : 130,284.87 = 76,469.15 : x
  2. Step 2: Convert to fraction form
    87,083.39/130,284.87 = 76,469.15/x
  3. Step 3: Cross multiply
    87,083.39x = 130,284.87 × 76,469.15
  4. Step 4: Simplify right side
    87,083.39x = 9,962,772,615.34
  5. Step 5: Solve for x
    x = 9,962,772,615.34/87,083.39
  6. Step 6: Final answer
    x = 114,404.98

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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.