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Finding the Fourth Proportional to 84,483, 126,724.50 and 22,153.50

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Solution

The fourth proportional to 84,483, 126,724.50 and 22,153.50 is: 33,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,483 : 126,724.50 = 22,153.50 : x
  2. Step 2: Convert to fraction form
    84,483/126,724.50 = 22,153.50/x
  3. Step 3: Cross multiply
    84,483x = 126,724.50 × 22,153.50
  4. Step 4: Simplify right side
    84,483x = 2,807,391,210.75
  5. Step 5: Solve for x
    x = 2,807,391,210.75/84,483
  6. Step 6: Final answer
    x = 33,230.25

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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.