Home / 45,851.94-68,778-12,572.46

Finding the Fourth Proportional to 45,851.94, 68,778 and 12,572.46

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Solution

The fourth proportional to 45,851.94, 68,778 and 12,572.46 is: 18,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,851.94 : 68,778 = 12,572.46 : x
  2. Step 2: Convert to fraction form
    45,851.94/68,778 = 12,572.46/x
  3. Step 3: Cross multiply
    45,851.94x = 68,778 × 12,572.46
  4. Step 4: Simplify right side
    45,851.94x = 864,708,653.88
  5. Step 5: Solve for x
    x = 864,708,653.88/45,851.94
  6. Step 6: Final answer
    x = 18,858.71

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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.