Home / 54,954.10-82,434.44-21,220.30

Finding the Fourth Proportional to 54,954.10, 82,434.44 and 21,220.30

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Solution

The fourth proportional to 54,954.10, 82,434.44 and 21,220.30 is: 31,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,954.10 : 82,434.44 = 21,220.30 : x
  2. Step 2: Convert to fraction form
    54,954.10/82,434.44 = 21,220.30/x
  3. Step 3: Cross multiply
    54,954.10x = 82,434.44 × 21,220.30
  4. Step 4: Simplify right side
    54,954.10x = 1,749,283,547.13
  5. Step 5: Solve for x
    x = 1,749,283,547.13/54,954.10
  6. Step 6: Final answer
    x = 31,831.72

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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.