Home / 68,790.42-94,929.60-38,575.68

Finding the Fourth Proportional to 68,790.42, 94,929.60 and 38,575.68

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Solution

The fourth proportional to 68,790.42, 94,929.60 and 38,575.68 is: 53,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,790.42 : 94,929.60 = 38,575.68 : x
  2. Step 2: Convert to fraction form
    68,790.42/94,929.60 = 38,575.68/x
  3. Step 3: Cross multiply
    68,790.42x = 94,929.60 × 38,575.68
  4. Step 4: Simplify right side
    68,790.42x = 3,661,973,872.13
  5. Step 5: Solve for x
    x = 3,661,973,872.13/68,790.42
  6. Step 6: Final answer
    x = 53,233.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.