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Finding the Fourth Proportional to 55,387.50, 83,115.81 and 22,555.50

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Solution

The fourth proportional to 55,387.50, 83,115.81 and 22,555.50 is: 33,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,387.50 : 83,115.81 = 22,555.50 : x
  2. Step 2: Convert to fraction form
    55,387.50/83,115.81 = 22,555.50/x
  3. Step 3: Cross multiply
    55,387.50x = 83,115.81 × 22,555.50
  4. Step 4: Simplify right side
    55,387.50x = 1,874,718,652.46
  5. Step 5: Solve for x
    x = 1,874,718,652.46/55,387.50
  6. Step 6: Final answer
    x = 33,847.32

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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.