Home / 87,427.96-120,669.66-55,590.64

Finding the Fourth Proportional to 87,427.96, 120,669.66 and 55,590.64

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Solution

The fourth proportional to 87,427.96, 120,669.66 and 55,590.64 is: 76,727.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,427.96 : 120,669.66 = 55,590.64 : x
  2. Step 2: Convert to fraction form
    87,427.96/120,669.66 = 55,590.64/x
  3. Step 3: Cross multiply
    87,427.96x = 120,669.66 × 55,590.64
  4. Step 4: Simplify right side
    87,427.96x = 6,708,103,627.98
  5. Step 5: Solve for x
    x = 6,708,103,627.98/87,427.96
  6. Step 6: Final answer
    x = 76,727.21

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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.