Home / 87,433.12-120,651.12-49,700

Finding the Fourth Proportional to 87,433.12, 120,651.12 and 49,700

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Solution

The fourth proportional to 87,433.12, 120,651.12 and 49,700 is: 68,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,433.12 : 120,651.12 = 49,700 : x
  2. Step 2: Convert to fraction form
    87,433.12/120,651.12 = 49,700/x
  3. Step 3: Cross multiply
    87,433.12x = 120,651.12 × 49,700
  4. Step 4: Simplify right side
    87,433.12x = 5,996,360,664
  5. Step 5: Solve for x
    x = 5,996,360,664/87,433.12
  6. Step 6: Final answer
    x = 68,582.26

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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.