Home / 54,532.70-81,804.45-18,988.55

Finding the Fourth Proportional to 54,532.70, 81,804.45 and 18,988.55

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Solution

The fourth proportional to 54,532.70, 81,804.45 and 18,988.55 is: 28,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,532.70 : 81,804.45 = 18,988.55 : x
  2. Step 2: Convert to fraction form
    54,532.70/81,804.45 = 18,988.55/x
  3. Step 3: Cross multiply
    54,532.70x = 81,804.45 × 18,988.55
  4. Step 4: Simplify right side
    54,532.70x = 1,553,347,889.05
  5. Step 5: Solve for x
    x = 1,553,347,889.05/54,532.70
  6. Step 6: Final answer
    x = 28,484.71

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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.