Home / 87,911.48-121,318.16-47,625.14

Finding the Fourth Proportional to 87,911.48, 121,318.16 and 47,625.14

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Solution

The fourth proportional to 87,911.48, 121,318.16 and 47,625.14 is: 65,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,911.48 : 121,318.16 = 47,625.14 : x
  2. Step 2: Convert to fraction form
    87,911.48/121,318.16 = 47,625.14/x
  3. Step 3: Cross multiply
    87,911.48x = 121,318.16 × 47,625.14
  4. Step 4: Simplify right side
    87,911.48x = 5,777,793,509.83
  5. Step 5: Solve for x
    x = 5,777,793,509.83/87,911.48
  6. Step 6: Final answer
    x = 65,722.86

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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.