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Finding the Fourth Proportional to 54,598.29, 81,911.03 and 43,395.90

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Solution

The fourth proportional to 54,598.29, 81,911.03 and 43,395.90 is: 65,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,598.29 : 81,911.03 = 43,395.90 : x
  2. Step 2: Convert to fraction form
    54,598.29/81,911.03 = 43,395.90/x
  3. Step 3: Cross multiply
    54,598.29x = 81,911.03 × 43,395.90
  4. Step 4: Simplify right side
    54,598.29x = 3,554,602,649.80
  5. Step 5: Solve for x
    x = 3,554,602,649.80/54,598.29
  6. Step 6: Final answer
    x = 65,104.65

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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.