Home / 87,795.37-121,158.17-51,489.41

Finding the Fourth Proportional to 87,795.37, 121,158.17 and 51,489.41

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Solution

The fourth proportional to 87,795.37, 121,158.17 and 51,489.41 is: 71,055.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,795.37 : 121,158.17 = 51,489.41 : x
  2. Step 2: Convert to fraction form
    87,795.37/121,158.17 = 51,489.41/x
  3. Step 3: Cross multiply
    87,795.37x = 121,158.17 × 51,489.41
  4. Step 4: Simplify right side
    87,795.37x = 6,238,362,992.88
  5. Step 5: Solve for x
    x = 6,238,362,992.88/87,795.37
  6. Step 6: Final answer
    x = 71,055.72

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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.