Home / 81,533.88-122,285.17-25,374.69

Finding the Fourth Proportional to 81,533.88, 122,285.17 and 25,374.69

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Solution

The fourth proportional to 81,533.88, 122,285.17 and 25,374.69 is: 38,057.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,533.88 : 122,285.17 = 25,374.69 : x
  2. Step 2: Convert to fraction form
    81,533.88/122,285.17 = 25,374.69/x
  3. Step 3: Cross multiply
    81,533.88x = 122,285.17 × 25,374.69
  4. Step 4: Simplify right side
    81,533.88x = 3,102,948,280.35
  5. Step 5: Solve for x
    x = 3,102,948,280.35/81,533.88
  6. Step 6: Final answer
    x = 38,057.16

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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.