Home / 77,530.22-106,963.70-43,976.78

Finding the Fourth Proportional to 77,530.22, 106,963.70 and 43,976.78

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Solution

The fourth proportional to 77,530.22, 106,963.70 and 43,976.78 is: 60,672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530.22 : 106,963.70 = 43,976.78 : x
  2. Step 2: Convert to fraction form
    77,530.22/106,963.70 = 43,976.78/x
  3. Step 3: Cross multiply
    77,530.22x = 106,963.70 × 43,976.78
  4. Step 4: Simplify right side
    77,530.22x = 4,703,919,102.89
  5. Step 5: Solve for x
    x = 4,703,919,102.89/77,530.22
  6. Step 6: Final answer
    x = 60,672.07

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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.