Home / 81,929.81-122,901.38-22,765.49

Finding the Fourth Proportional to 81,929.81, 122,901.38 and 22,765.49

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Solution

The fourth proportional to 81,929.81, 122,901.38 and 22,765.49 is: 34,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,929.81 : 122,901.38 = 22,765.49 : x
  2. Step 2: Convert to fraction form
    81,929.81/122,901.38 = 22,765.49/x
  3. Step 3: Cross multiply
    81,929.81x = 122,901.38 × 22,765.49
  4. Step 4: Simplify right side
    81,929.81x = 2,797,909,852.91
  5. Step 5: Solve for x
    x = 2,797,909,852.91/81,929.81
  6. Step 6: Final answer
    x = 34,150.08

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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.