Home / 87,435.44-120,656.64-49,708.88

Finding the Fourth Proportional to 87,435.44, 120,656.64 and 49,708.88

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Solution

The fourth proportional to 87,435.44, 120,656.64 and 49,708.88 is: 68,595.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,435.44 : 120,656.64 = 49,708.88 : x
  2. Step 2: Convert to fraction form
    87,435.44/120,656.64 = 49,708.88/x
  3. Step 3: Cross multiply
    87,435.44x = 120,656.64 × 49,708.88
  4. Step 4: Simplify right side
    87,435.44x = 5,997,706,438.96
  5. Step 5: Solve for x
    x = 5,997,706,438.96/87,435.44
  6. Step 6: Final answer
    x = 68,595.83

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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.