Home / 54,896.40-82,368.50-21,640.64

Finding the Fourth Proportional to 54,896.40, 82,368.50 and 21,640.64

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Solution

The fourth proportional to 54,896.40, 82,368.50 and 21,640.64 is: 32,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,896.40 : 82,368.50 = 21,640.64 : x
  2. Step 2: Convert to fraction form
    54,896.40/82,368.50 = 21,640.64/x
  3. Step 3: Cross multiply
    54,896.40x = 82,368.50 × 21,640.64
  4. Step 4: Simplify right side
    54,896.40x = 1,782,506,535.79
  5. Step 5: Solve for x
    x = 1,782,506,535.79/54,896.40
  6. Step 6: Final answer
    x = 32,470.37

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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.