Home / 81,058.50-121,722.21-50,090.58

Finding the Fourth Proportional to 81,058.50, 121,722.21 and 50,090.58

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Solution

The fourth proportional to 81,058.50, 121,722.21 and 50,090.58 is: 75,218.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,058.50 : 121,722.21 = 50,090.58 : x
  2. Step 2: Convert to fraction form
    81,058.50/121,722.21 = 50,090.58/x
  3. Step 3: Cross multiply
    81,058.50x = 121,722.21 × 50,090.58
  4. Step 4: Simplify right side
    81,058.50x = 6,097,136,097.78
  5. Step 5: Solve for x
    x = 6,097,136,097.78/81,058.50
  6. Step 6: Final answer
    x = 75,218.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.