Home / 86,983.92-120,035.78-51,176.24

Finding the Fourth Proportional to 86,983.92, 120,035.78 and 51,176.24

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Solution

The fourth proportional to 86,983.92, 120,035.78 and 51,176.24 is: 70,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983.92 : 120,035.78 = 51,176.24 : x
  2. Step 2: Convert to fraction form
    86,983.92/120,035.78 = 51,176.24/x
  3. Step 3: Cross multiply
    86,983.92x = 120,035.78 × 51,176.24
  4. Step 4: Simplify right side
    86,983.92x = 6,142,979,885.87
  5. Step 5: Solve for x
    x = 6,142,979,885.87/86,983.92
  6. Step 6: Final answer
    x = 70,622.02

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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.