Home / 68,887.62-103,333.98-18,971.58

Finding the Fourth Proportional to 68,887.62, 103,333.98 and 18,971.58

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Solution

The fourth proportional to 68,887.62, 103,333.98 and 18,971.58 is: 28,458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,887.62 : 103,333.98 = 18,971.58 : x
  2. Step 2: Convert to fraction form
    68,887.62/103,333.98 = 18,971.58/x
  3. Step 3: Cross multiply
    68,887.62x = 103,333.98 × 18,971.58
  4. Step 4: Simplify right side
    68,887.62x = 1,960,408,868.29
  5. Step 5: Solve for x
    x = 1,960,408,868.29/68,887.62
  6. Step 6: Final answer
    x = 28,458.07

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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.