Home / 87,890.82-121,289.04-47,604.48

Finding the Fourth Proportional to 87,890.82, 121,289.04 and 47,604.48

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Solution

The fourth proportional to 87,890.82, 121,289.04 and 47,604.48 is: 65,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,890.82 : 121,289.04 = 47,604.48 : x
  2. Step 2: Convert to fraction form
    87,890.82/121,289.04 = 47,604.48/x
  3. Step 3: Cross multiply
    87,890.82x = 121,289.04 × 47,604.48
  4. Step 4: Simplify right side
    87,890.82x = 5,773,901,678.90
  5. Step 5: Solve for x
    x = 5,773,901,678.90/87,890.82
  6. Step 6: Final answer
    x = 65,694.02

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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.