Home / 54,705.90-81,976.83-42,207.24

Finding the Fourth Proportional to 54,705.90, 81,976.83 and 42,207.24

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Solution

The fourth proportional to 54,705.90, 81,976.83 and 42,207.24 is: 63,247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,705.90 : 81,976.83 = 42,207.24 : x
  2. Step 2: Convert to fraction form
    54,705.90/81,976.83 = 42,207.24/x
  3. Step 3: Cross multiply
    54,705.90x = 81,976.83 × 42,207.24
  4. Step 4: Simplify right side
    54,705.90x = 3,460,015,738.25
  5. Step 5: Solve for x
    x = 3,460,015,738.25/54,705.90
  6. Step 6: Final answer
    x = 63,247.58

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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.