Home / 80,887.15-121,344.09-36,512.92

Finding the Fourth Proportional to 80,887.15, 121,344.09 and 36,512.92

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Solution

The fourth proportional to 80,887.15, 121,344.09 and 36,512.92 is: 54,775.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,887.15 : 121,344.09 = 36,512.92 : x
  2. Step 2: Convert to fraction form
    80,887.15/121,344.09 = 36,512.92/x
  3. Step 3: Cross multiply
    80,887.15x = 121,344.09 × 36,512.92
  4. Step 4: Simplify right side
    80,887.15x = 4,430,627,050.64
  5. Step 5: Solve for x
    x = 4,430,627,050.64/80,887.15
  6. Step 6: Final answer
    x = 54,775.41

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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.