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Finding the Fourth Proportional to 45,395.86, 68,125.11 and 15,813.94

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Solution

The fourth proportional to 45,395.86, 68,125.11 and 15,813.94 is: 23,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,395.86 : 68,125.11 = 15,813.94 : x
  2. Step 2: Convert to fraction form
    45,395.86/68,125.11 = 15,813.94/x
  3. Step 3: Cross multiply
    45,395.86x = 68,125.11 × 15,813.94
  4. Step 4: Simplify right side
    45,395.86x = 1,077,326,402.03
  5. Step 5: Solve for x
    x = 1,077,326,402.03/45,395.86
  6. Step 6: Final answer
    x = 23,731.82

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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.