Home / 81,928.02-122,857.22-34,564.34

Finding the Fourth Proportional to 81,928.02, 122,857.22 and 34,564.34

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Solution

The fourth proportional to 81,928.02, 122,857.22 and 34,564.34 is: 51,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,928.02 : 122,857.22 = 34,564.34 : x
  2. Step 2: Convert to fraction form
    81,928.02/122,857.22 = 34,564.34/x
  3. Step 3: Cross multiply
    81,928.02x = 122,857.22 × 34,564.34
  4. Step 4: Simplify right side
    81,928.02x = 4,246,478,723.53
  5. Step 5: Solve for x
    x = 4,246,478,723.53/81,928.02
  6. Step 6: Final answer
    x = 51,831.82

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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.