Home / 87,845.15-121,224.86-47,558.54

Finding the Fourth Proportional to 87,845.15, 121,224.86 and 47,558.54

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Solution

The fourth proportional to 87,845.15, 121,224.86 and 47,558.54 is: 65,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,845.15 : 121,224.86 = 47,558.54 : x
  2. Step 2: Convert to fraction form
    87,845.15/121,224.86 = 47,558.54/x
  3. Step 3: Cross multiply
    87,845.15x = 121,224.86 × 47,558.54
  4. Step 4: Simplify right side
    87,845.15x = 5,765,276,509.39
  5. Step 5: Solve for x
    x = 5,765,276,509.39/87,845.15
  6. Step 6: Final answer
    x = 65,630.00

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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.