Home / 68,790.72-103,196.80-29,348.16

Finding the Fourth Proportional to 68,790.72, 103,196.80 and 29,348.16

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Solution

The fourth proportional to 68,790.72, 103,196.80 and 29,348.16 is: 44,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,790.72 : 103,196.80 = 29,348.16 : x
  2. Step 2: Convert to fraction form
    68,790.72/103,196.80 = 29,348.16/x
  3. Step 3: Cross multiply
    68,790.72x = 103,196.80 × 29,348.16
  4. Step 4: Simplify right side
    68,790.72x = 3,028,636,197.89
  5. Step 5: Solve for x
    x = 3,028,636,197.89/68,790.72
  6. Step 6: Final answer
    x = 44,026.81

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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.