Home / 54,104.36-81,161.16-14,128.66

Finding the Fourth Proportional to 54,104.36, 81,161.16 and 14,128.66

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Solution

The fourth proportional to 54,104.36, 81,161.16 and 14,128.66 is: 21,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,104.36 : 81,161.16 = 14,128.66 : x
  2. Step 2: Convert to fraction form
    54,104.36/81,161.16 = 14,128.66/x
  3. Step 3: Cross multiply
    54,104.36x = 81,161.16 × 14,128.66
  4. Step 4: Simplify right side
    54,104.36x = 1,146,698,483.31
  5. Step 5: Solve for x
    x = 1,146,698,483.31/54,104.36
  6. Step 6: Final answer
    x = 21,194.20

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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.