Home / 81,800.48-122,703.45-22,631.20

Finding the Fourth Proportional to 81,800.48, 122,703.45 and 22,631.20

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Solution

The fourth proportional to 81,800.48, 122,703.45 and 22,631.20 is: 33,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,800.48 : 122,703.45 = 22,631.20 : x
  2. Step 2: Convert to fraction form
    81,800.48/122,703.45 = 22,631.20/x
  3. Step 3: Cross multiply
    81,800.48x = 122,703.45 × 22,631.20
  4. Step 4: Simplify right side
    81,800.48x = 2,776,926,317.64
  5. Step 5: Solve for x
    x = 2,776,926,317.64/81,800.48
  6. Step 6: Final answer
    x = 33,947.56

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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.