Home / 87,333.36-120,520.44-49,609.68

Finding the Fourth Proportional to 87,333.36, 120,520.44 and 49,609.68

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Solution

The fourth proportional to 87,333.36, 120,520.44 and 49,609.68 is: 68,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,333.36 : 120,520.44 = 49,609.68 : x
  2. Step 2: Convert to fraction form
    87,333.36/120,520.44 = 49,609.68/x
  3. Step 3: Cross multiply
    87,333.36x = 120,520.44 × 49,609.68
  4. Step 4: Simplify right side
    87,333.36x = 5,978,980,461.86
  5. Step 5: Solve for x
    x = 5,978,980,461.86/87,333.36
  6. Step 6: Final answer
    x = 68,461.59

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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.