Home / 87,099.23-120,201.17-51,300.74

Finding the Fourth Proportional to 87,099.23, 120,201.17 and 51,300.74

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Solution

The fourth proportional to 87,099.23, 120,201.17 and 51,300.74 is: 70,797.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,099.23 : 120,201.17 = 51,300.74 : x
  2. Step 2: Convert to fraction form
    87,099.23/120,201.17 = 51,300.74/x
  3. Step 3: Cross multiply
    87,099.23x = 120,201.17 × 51,300.74
  4. Step 4: Simplify right side
    87,099.23x = 6,166,409,013.87
  5. Step 5: Solve for x
    x = 6,166,409,013.87/87,099.23
  6. Step 6: Final answer
    x = 70,797.51

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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.