Home / 81,497.27-122,293.56-34,108.40

Finding the Fourth Proportional to 81,497.27, 122,293.56 and 34,108.40

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Solution

The fourth proportional to 81,497.27, 122,293.56 and 34,108.40 is: 51,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,497.27 : 122,293.56 = 34,108.40 : x
  2. Step 2: Convert to fraction form
    81,497.27/122,293.56 = 34,108.40/x
  3. Step 3: Cross multiply
    81,497.27x = 122,293.56 × 34,108.40
  4. Step 4: Simplify right side
    81,497.27x = 4,171,237,661.90
  5. Step 5: Solve for x
    x = 4,171,237,661.90/81,497.27
  6. Step 6: Final answer
    x = 51,182.54

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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.