Home / 68,703.03-103,049.62-21,316.91

Finding the Fourth Proportional to 68,703.03, 103,049.62 and 21,316.91

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Solution

The fourth proportional to 68,703.03, 103,049.62 and 21,316.91 is: 31,973.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,703.03 : 103,049.62 = 21,316.91 : x
  2. Step 2: Convert to fraction form
    68,703.03/103,049.62 = 21,316.91/x
  3. Step 3: Cross multiply
    68,703.03x = 103,049.62 × 21,316.91
  4. Step 4: Simplify right side
    68,703.03x = 2,196,698,906.53
  5. Step 5: Solve for x
    x = 2,196,698,906.53/68,703.03
  6. Step 6: Final answer
    x = 31,973.83

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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.