Home / 54,280.70-81,429.15-19,217.60

Finding the Fourth Proportional to 54,280.70, 81,429.15 and 19,217.60

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Solution

The fourth proportional to 54,280.70, 81,429.15 and 19,217.60 is: 28,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,280.70 : 81,429.15 = 19,217.60 : x
  2. Step 2: Convert to fraction form
    54,280.70/81,429.15 = 19,217.60/x
  3. Step 3: Cross multiply
    54,280.70x = 81,429.15 × 19,217.60
  4. Step 4: Simplify right side
    54,280.70x = 1,564,872,833.04
  5. Step 5: Solve for x
    x = 1,564,872,833.04/54,280.70
  6. Step 6: Final answer
    x = 28,829.27

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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.