Home / 87,520.32-120,788.16-49,800.48

Finding the Fourth Proportional to 87,520.32, 120,788.16 and 49,800.48

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Solution

The fourth proportional to 87,520.32, 120,788.16 and 49,800.48 is: 68,730.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,520.32 : 120,788.16 = 49,800.48 : x
  2. Step 2: Convert to fraction form
    87,520.32/120,788.16 = 49,800.48/x
  3. Step 3: Cross multiply
    87,520.32x = 120,788.16 × 49,800.48
  4. Step 4: Simplify right side
    87,520.32x = 6,015,308,346.32
  5. Step 5: Solve for x
    x = 6,015,308,346.32/87,520.32
  6. Step 6: Final answer
    x = 68,730.42

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1.5x scale

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.