Home / 87,669.46-120,983.58-47,383.10

Finding the Fourth Proportional to 87,669.46, 120,983.58 and 47,383.10

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Solution

The fourth proportional to 87,669.46, 120,983.58 and 47,383.10 is: 65,388.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,669.46 : 120,983.58 = 47,383.10 : x
  2. Step 2: Convert to fraction form
    87,669.46/120,983.58 = 47,383.10/x
  3. Step 3: Cross multiply
    87,669.46x = 120,983.58 × 47,383.10
  4. Step 4: Simplify right side
    87,669.46x = 5,732,577,069.50
  5. Step 5: Solve for x
    x = 5,732,577,069.50/87,669.46
  6. Step 6: Final answer
    x = 65,388.53

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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.