Home / 77,563.20-107,029.62-43,563.90

Finding the Fourth Proportional to 77,563.20, 107,029.62 and 43,563.90

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Solution

The fourth proportional to 77,563.20, 107,029.62 and 43,563.90 is: 60,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,563.20 : 107,029.62 = 43,563.90 : x
  2. Step 2: Convert to fraction form
    77,563.20/107,029.62 = 43,563.90/x
  3. Step 3: Cross multiply
    77,563.20x = 107,029.62 × 43,563.90
  4. Step 4: Simplify right side
    77,563.20x = 4,662,627,662.72
  5. Step 5: Solve for x
    x = 4,662,627,662.72/77,563.20
  6. Step 6: Final answer
    x = 60,113.92

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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.