Home / 54,585.78-75,323.04-30,711.96

Finding the Fourth Proportional to 54,585.78, 75,323.04 and 30,711.96

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Solution

The fourth proportional to 54,585.78, 75,323.04 and 30,711.96 is: 42,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,585.78 : 75,323.04 = 30,711.96 : x
  2. Step 2: Convert to fraction form
    54,585.78/75,323.04 = 30,711.96/x
  3. Step 3: Cross multiply
    54,585.78x = 75,323.04 × 30,711.96
  4. Step 4: Simplify right side
    54,585.78x = 2,313,318,191.56
  5. Step 5: Solve for x
    x = 2,313,318,191.56/54,585.78
  6. Step 6: Final answer
    x = 42,379.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.