Home / 45,811.44-68,719.23-12,530.76

Finding the Fourth Proportional to 45,811.44, 68,719.23 and 12,530.76

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Solution

The fourth proportional to 45,811.44, 68,719.23 and 12,530.76 is: 18,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,811.44 : 68,719.23 = 12,530.76 : x
  2. Step 2: Convert to fraction form
    45,811.44/68,719.23 = 12,530.76/x
  3. Step 3: Cross multiply
    45,811.44x = 68,719.23 × 12,530.76
  4. Step 4: Simplify right side
    45,811.44x = 861,104,178.51
  5. Step 5: Solve for x
    x = 861,104,178.51/45,811.44
  6. Step 6: Final answer
    x = 18,796.71

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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.