Home / 68,675.15-102,929.54-29,149.26

Finding the Fourth Proportional to 68,675.15, 102,929.54 and 29,149.26

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Solution

The fourth proportional to 68,675.15, 102,929.54 and 29,149.26 is: 43,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,675.15 : 102,929.54 = 29,149.26 : x
  2. Step 2: Convert to fraction form
    68,675.15/102,929.54 = 29,149.26/x
  3. Step 3: Cross multiply
    68,675.15x = 102,929.54 × 29,149.26
  4. Step 4: Simplify right side
    68,675.15x = 3,000,319,777.39
  5. Step 5: Solve for x
    x = 3,000,319,777.39/68,675.15
  6. Step 6: Final answer
    x = 43,688.58

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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.