Home / 54,938.12-82,358.32-19,869.98

Finding the Fourth Proportional to 54,938.12, 82,358.32 and 19,869.98

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Solution

The fourth proportional to 54,938.12, 82,358.32 and 19,869.98 is: 29,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,938.12 : 82,358.32 = 19,869.98 : x
  2. Step 2: Convert to fraction form
    54,938.12/82,358.32 = 19,869.98/x
  3. Step 3: Cross multiply
    54,938.12x = 82,358.32 × 19,869.98
  4. Step 4: Simplify right side
    54,938.12x = 1,636,458,171.23
  5. Step 5: Solve for x
    x = 1,636,458,171.23/54,938.12
  6. Step 6: Final answer
    x = 29,787.30

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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.