Home / 68,887.74-103,307.31-22,128.06

Finding the Fourth Proportional to 68,887.74, 103,307.31 and 22,128.06

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Solution

The fourth proportional to 68,887.74, 103,307.31 and 22,128.06 is: 33,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,887.74 : 103,307.31 = 22,128.06 : x
  2. Step 2: Convert to fraction form
    68,887.74/103,307.31 = 22,128.06/x
  3. Step 3: Cross multiply
    68,887.74x = 103,307.31 × 22,128.06
  4. Step 4: Simplify right side
    68,887.74x = 2,285,990,354.12
  5. Step 5: Solve for x
    x = 2,285,990,354.12/68,887.74
  6. Step 6: Final answer
    x = 33,184.28

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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.