Home / 54,911.36-82,386.66-21,612.98

Finding the Fourth Proportional to 54,911.36, 82,386.66 and 21,612.98

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Solution

The fourth proportional to 54,911.36, 82,386.66 and 21,612.98 is: 32,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,911.36 : 82,386.66 = 21,612.98 : x
  2. Step 2: Convert to fraction form
    54,911.36/82,386.66 = 21,612.98/x
  3. Step 3: Cross multiply
    54,911.36x = 82,386.66 × 21,612.98
  4. Step 4: Simplify right side
    54,911.36x = 1,780,621,234.85
  5. Step 5: Solve for x
    x = 1,780,621,234.85/54,911.36
  6. Step 6: Final answer
    x = 32,427.19

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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.