Home / 81,529.50-122,263.26-34,147.74

Finding the Fourth Proportional to 81,529.50, 122,263.26 and 34,147.74

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Solution

The fourth proportional to 81,529.50, 122,263.26 and 34,147.74 is: 51,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,529.50 : 122,263.26 = 34,147.74 : x
  2. Step 2: Convert to fraction form
    81,529.50/122,263.26 = 34,147.74/x
  3. Step 3: Cross multiply
    81,529.50x = 122,263.26 × 34,147.74
  4. Step 4: Simplify right side
    81,529.50x = 4,175,014,014.03
  5. Step 5: Solve for x
    x = 4,175,014,014.03/81,529.50
  6. Step 6: Final answer
    x = 51,208.63

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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.