Home / 87,610.40-131,415.60-67,949.60

Finding the Fourth Proportional to 87,610.40, 131,415.60 and 67,949.60

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Solution

The fourth proportional to 87,610.40, 131,415.60 and 67,949.60 is: 101,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,610.40 : 131,415.60 = 67,949.60 : x
  2. Step 2: Convert to fraction form
    87,610.40/131,415.60 = 67,949.60/x
  3. Step 3: Cross multiply
    87,610.40x = 131,415.60 × 67,949.60
  4. Step 4: Simplify right side
    87,610.40x = 8,929,637,453.76
  5. Step 5: Solve for x
    x = 8,929,637,453.76/87,610.40
  6. Step 6: Final answer
    x = 101,924.40

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1.5x scale

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.