Home / 87,212.96-120,377.04-53,707.04

Finding the Fourth Proportional to 87,212.96, 120,377.04 and 53,707.04

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Solution

The fourth proportional to 87,212.96, 120,377.04 and 53,707.04 is: 74,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,212.96 : 120,377.04 = 53,707.04 : x
  2. Step 2: Convert to fraction form
    87,212.96/120,377.04 = 53,707.04/x
  3. Step 3: Cross multiply
    87,212.96x = 120,377.04 × 53,707.04
  4. Step 4: Simplify right side
    87,212.96x = 6,465,094,502.36
  5. Step 5: Solve for x
    x = 6,465,094,502.36/87,212.96
  6. Step 6: Final answer
    x = 74,129.97

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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.