Home / 54,790.16-82,135.90-19,705.15

Finding the Fourth Proportional to 54,790.16, 82,135.90 and 19,705.15

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Solution

The fourth proportional to 54,790.16, 82,135.90 and 19,705.15 is: 29,539.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,790.16 : 82,135.90 = 19,705.15 : x
  2. Step 2: Convert to fraction form
    54,790.16/82,135.90 = 19,705.15/x
  3. Step 3: Cross multiply
    54,790.16x = 82,135.90 × 19,705.15
  4. Step 4: Simplify right side
    54,790.16x = 1,618,500,153.89
  5. Step 5: Solve for x
    x = 1,618,500,153.89/54,790.16
  6. Step 6: Final answer
    x = 29,539.98

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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.