Home / 87,910.88-121,317.60-47,624.64

Finding the Fourth Proportional to 87,910.88, 121,317.60 and 47,624.64

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Solution

The fourth proportional to 87,910.88, 121,317.60 and 47,624.64 is: 65,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910.88 : 121,317.60 = 47,624.64 : x
  2. Step 2: Convert to fraction form
    87,910.88/121,317.60 = 47,624.64/x
  3. Step 3: Cross multiply
    87,910.88x = 121,317.60 × 47,624.64
  4. Step 4: Simplify right side
    87,910.88x = 5,777,707,025.66
  5. Step 5: Solve for x
    x = 5,777,707,025.66/87,910.88
  6. Step 6: Final answer
    x = 65,722.32

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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.