Home / 87,837.20-121,215.37-47,550.96

Finding the Fourth Proportional to 87,837.20, 121,215.37 and 47,550.96

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Solution

The fourth proportional to 87,837.20, 121,215.37 and 47,550.96 is: 65,620.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.20 : 121,215.37 = 47,550.96 : x
  2. Step 2: Convert to fraction form
    87,837.20/121,215.37 = 47,550.96/x
  3. Step 3: Cross multiply
    87,837.20x = 121,215.37 × 47,550.96
  4. Step 4: Simplify right side
    87,837.20x = 5,763,906,483.63
  5. Step 5: Solve for x
    x = 5,763,906,483.63/87,837.20
  6. Step 6: Final answer
    x = 65,620.34

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1.5x scale

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.