Home / 45,857.75-68,778.32-15,871.95

Finding the Fourth Proportional to 45,857.75, 68,778.32 and 15,871.95

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Solution

The fourth proportional to 45,857.75, 68,778.32 and 15,871.95 is: 23,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,857.75 : 68,778.32 = 15,871.95 : x
  2. Step 2: Convert to fraction form
    45,857.75/68,778.32 = 15,871.95/x
  3. Step 3: Cross multiply
    45,857.75x = 68,778.32 × 15,871.95
  4. Step 4: Simplify right side
    45,857.75x = 1,091,645,976.76
  5. Step 5: Solve for x
    x = 1,091,645,976.76/45,857.75
  6. Step 6: Final answer
    x = 23,805.05

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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.