Home / 76,939.49-106,194.20-45,118.64

Finding the Fourth Proportional to 76,939.49, 106,194.20 and 45,118.64

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Solution

The fourth proportional to 76,939.49, 106,194.20 and 45,118.64 is: 62,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.49 : 106,194.20 = 45,118.64 : x
  2. Step 2: Convert to fraction form
    76,939.49/106,194.20 = 45,118.64/x
  3. Step 3: Cross multiply
    76,939.49x = 106,194.20 × 45,118.64
  4. Step 4: Simplify right side
    76,939.49x = 4,791,337,879.89
  5. Step 5: Solve for x
    x = 4,791,337,879.89/76,939.49
  6. Step 6: Final answer
    x = 62,274.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.