Home / 87,423.45-120,632.99-49,181.70

Finding the Fourth Proportional to 87,423.45, 120,632.99 and 49,181.70

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Solution

The fourth proportional to 87,423.45, 120,632.99 and 49,181.70 is: 67,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.45 : 120,632.99 = 49,181.70 : x
  2. Step 2: Convert to fraction form
    87,423.45/120,632.99 = 49,181.70/x
  3. Step 3: Cross multiply
    87,423.45x = 120,632.99 × 49,181.70
  4. Step 4: Simplify right side
    87,423.45x = 5,932,935,524.28
  5. Step 5: Solve for x
    x = 5,932,935,524.28/87,423.45
  6. Step 6: Final answer
    x = 67,864.35

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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.