Home / 81,887.25-122,634.04-46,720.29

Finding the Fourth Proportional to 81,887.25, 122,634.04 and 46,720.29

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Solution

The fourth proportional to 81,887.25, 122,634.04 and 46,720.29 is: 69,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,887.25 : 122,634.04 = 46,720.29 : x
  2. Step 2: Convert to fraction form
    81,887.25/122,634.04 = 46,720.29/x
  3. Step 3: Cross multiply
    81,887.25x = 122,634.04 × 46,720.29
  4. Step 4: Simplify right side
    81,887.25x = 5,729,497,065.90
  5. Step 5: Solve for x
    x = 5,729,497,065.90/81,887.25
  6. Step 6: Final answer
    x = 69,968.13

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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.