Home / 81,331.52-121,983.44-22,153.35

Finding the Fourth Proportional to 81,331.52, 121,983.44 and 22,153.35

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Solution

The fourth proportional to 81,331.52, 121,983.44 and 22,153.35 is: 33,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.52 : 121,983.44 = 22,153.35 : x
  2. Step 2: Convert to fraction form
    81,331.52/121,983.44 = 22,153.35/x
  3. Step 3: Cross multiply
    81,331.52x = 121,983.44 × 22,153.35
  4. Step 4: Simplify right side
    81,331.52x = 2,702,341,895.91
  5. Step 5: Solve for x
    x = 2,702,341,895.91/81,331.52
  6. Step 6: Final answer
    x = 33,226.25

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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.