Home / 54,085.58-81,128.42-14,104.53

Finding the Fourth Proportional to 54,085.58, 81,128.42 and 14,104.53

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Solution

The fourth proportional to 54,085.58, 81,128.42 and 14,104.53 is: 21,156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,085.58 : 81,128.42 = 14,104.53 : x
  2. Step 2: Convert to fraction form
    54,085.58/81,128.42 = 14,104.53/x
  3. Step 3: Cross multiply
    54,085.58x = 81,128.42 × 14,104.53
  4. Step 4: Simplify right side
    54,085.58x = 1,144,278,216.11
  5. Step 5: Solve for x
    x = 1,144,278,216.11/54,085.58
  6. Step 6: Final answer
    x = 21,156.81

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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.