Home / 81,928.94-122,941.16-34,541.13

Finding the Fourth Proportional to 81,928.94, 122,941.16 and 34,541.13

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Solution

The fourth proportional to 81,928.94, 122,941.16 and 34,541.13 is: 51,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,928.94 : 122,941.16 = 34,541.13 : x
  2. Step 2: Convert to fraction form
    81,928.94/122,941.16 = 34,541.13/x
  3. Step 3: Cross multiply
    81,928.94x = 122,941.16 × 34,541.13
  4. Step 4: Simplify right side
    81,928.94x = 4,246,527,007.76
  5. Step 5: Solve for x
    x = 4,246,527,007.76/81,928.94
  6. Step 6: Final answer
    x = 51,831.83

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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.