Home / 81,484.31-122,226.56-22,320.49

Finding the Fourth Proportional to 81,484.31, 122,226.56 and 22,320.49

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Solution

The fourth proportional to 81,484.31, 122,226.56 and 22,320.49 is: 33,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,484.31 : 122,226.56 = 22,320.49 : x
  2. Step 2: Convert to fraction form
    81,484.31/122,226.56 = 22,320.49/x
  3. Step 3: Cross multiply
    81,484.31x = 122,226.56 × 22,320.49
  4. Step 4: Simplify right side
    81,484.31x = 2,728,155,987.48
  5. Step 5: Solve for x
    x = 2,728,155,987.48/81,484.31
  6. Step 6: Final answer
    x = 33,480.75

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1.5x scale

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.