Home / 87,555.79-120,832.86-48,799.64

Finding the Fourth Proportional to 87,555.79, 120,832.86 and 48,799.64

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Solution

The fourth proportional to 87,555.79, 120,832.86 and 48,799.64 is: 67,346.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,555.79 : 120,832.86 = 48,799.64 : x
  2. Step 2: Convert to fraction form
    87,555.79/120,832.86 = 48,799.64/x
  3. Step 3: Cross multiply
    87,555.79x = 120,832.86 × 48,799.64
  4. Step 4: Simplify right side
    87,555.79x = 5,896,600,213.41
  5. Step 5: Solve for x
    x = 5,896,600,213.41/87,555.79
  6. Step 6: Final answer
    x = 67,346.78

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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.