Home / 45,815.86-68,734.55-14,224.31

Finding the Fourth Proportional to 45,815.86, 68,734.55 and 14,224.31

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Solution

The fourth proportional to 45,815.86, 68,734.55 and 14,224.31 is: 21,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,815.86 : 68,734.55 = 14,224.31 : x
  2. Step 2: Convert to fraction form
    45,815.86/68,734.55 = 14,224.31/x
  3. Step 3: Cross multiply
    45,815.86x = 68,734.55 × 14,224.31
  4. Step 4: Simplify right side
    45,815.86x = 977,701,546.91
  5. Step 5: Solve for x
    x = 977,701,546.91/45,815.86
  6. Step 6: Final answer
    x = 21,339.81

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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.