Home / 45,561-68,342.11-15,979.70

Finding the Fourth Proportional to 45,561, 68,342.11 and 15,979.70

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Solution

The fourth proportional to 45,561, 68,342.11 and 15,979.70 is: 23,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,561 : 68,342.11 = 15,979.70 : x
  2. Step 2: Convert to fraction form
    45,561/68,342.11 = 15,979.70/x
  3. Step 3: Cross multiply
    45,561x = 68,342.11 × 15,979.70
  4. Step 4: Simplify right side
    45,561x = 1,092,086,415.17
  5. Step 5: Solve for x
    x = 1,092,086,415.17/45,561
  6. Step 6: Final answer
    x = 23,969.76

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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.