Home / 92,939.25-139,330.49-40,309.09

Finding the Fourth Proportional to 92,939.25, 139,330.49 and 40,309.09

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Solution

The fourth proportional to 92,939.25, 139,330.49 and 40,309.09 is: 60,429.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,939.25 : 139,330.49 = 40,309.09 : x
  2. Step 2: Convert to fraction form
    92,939.25/139,330.49 = 40,309.09/x
  3. Step 3: Cross multiply
    92,939.25x = 139,330.49 × 40,309.09
  4. Step 4: Simplify right side
    92,939.25x = 5,616,285,261.15
  5. Step 5: Solve for x
    x = 5,616,285,261.15/92,939.25
  6. Step 6: Final answer
    x = 60,429.64

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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.