Home / 54,527.10-81,790.65-28,239.90

Finding the Fourth Proportional to 54,527.10, 81,790.65 and 28,239.90

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Solution

The fourth proportional to 54,527.10, 81,790.65 and 28,239.90 is: 42,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,527.10 : 81,790.65 = 28,239.90 : x
  2. Step 2: Convert to fraction form
    54,527.10/81,790.65 = 28,239.90/x
  3. Step 3: Cross multiply
    54,527.10x = 81,790.65 × 28,239.90
  4. Step 4: Simplify right side
    54,527.10x = 2,309,759,776.94
  5. Step 5: Solve for x
    x = 2,309,759,776.94/54,527.10
  6. Step 6: Final answer
    x = 42,359.85

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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.