Home / 54,938.50-82,358.88-19,870.36

Finding the Fourth Proportional to 54,938.50, 82,358.88 and 19,870.36

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Solution

The fourth proportional to 54,938.50, 82,358.88 and 19,870.36 is: 29,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,938.50 : 82,358.88 = 19,870.36 : x
  2. Step 2: Convert to fraction form
    54,938.50/82,358.88 = 19,870.36/x
  3. Step 3: Cross multiply
    54,938.50x = 82,358.88 × 19,870.36
  4. Step 4: Simplify right side
    54,938.50x = 1,636,500,594.80
  5. Step 5: Solve for x
    x = 1,636,500,594.80/54,938.50
  6. Step 6: Final answer
    x = 29,787.86

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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.