Home / 87,608.18-120,903.76-53,606

Finding the Fourth Proportional to 87,608.18, 120,903.76 and 53,606

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Solution

The fourth proportional to 87,608.18, 120,903.76 and 53,606 is: 73,979.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,608.18 : 120,903.76 = 53,606 : x
  2. Step 2: Convert to fraction form
    87,608.18/120,903.76 = 53,606/x
  3. Step 3: Cross multiply
    87,608.18x = 120,903.76 × 53,606
  4. Step 4: Simplify right side
    87,608.18x = 6,481,166,958.56
  5. Step 5: Solve for x
    x = 6,481,166,958.56/87,608.18
  6. Step 6: Final answer
    x = 73,979.02

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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.