Home / 87,995.60-131,993.66-21,435.76

Finding the Fourth Proportional to 87,995.60, 131,993.66 and 21,435.76

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Solution

The fourth proportional to 87,995.60, 131,993.66 and 21,435.76 is: 32,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.60 : 131,993.66 = 21,435.76 : x
  2. Step 2: Convert to fraction form
    87,995.60/131,993.66 = 21,435.76/x
  3. Step 3: Cross multiply
    87,995.60x = 131,993.66 × 21,435.76
  4. Step 4: Simplify right side
    87,995.60x = 2,829,384,417.28
  5. Step 5: Solve for x
    x = 2,829,384,417.28/87,995.60
  6. Step 6: Final answer
    x = 32,153.70

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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.