Home / 79,278.45-118,929.92-26,683.83

Finding the Fourth Proportional to 79,278.45, 118,929.92 and 26,683.83

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Solution

The fourth proportional to 79,278.45, 118,929.92 and 26,683.83 is: 40,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,278.45 : 118,929.92 = 26,683.83 : x
  2. Step 2: Convert to fraction form
    79,278.45/118,929.92 = 26,683.83/x
  3. Step 3: Cross multiply
    79,278.45x = 118,929.92 × 26,683.83
  4. Step 4: Simplify right side
    79,278.45x = 3,173,505,783.87
  5. Step 5: Solve for x
    x = 3,173,505,783.87/79,278.45
  6. Step 6: Final answer
    x = 40,029.87

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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.