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Finding the Fourth Proportional to 77,563.44, 107,020.92 and 45,283.38

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Solution

The fourth proportional to 77,563.44, 107,020.92 and 45,283.38 is: 62,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,563.44 : 107,020.92 = 45,283.38 : x
  2. Step 2: Convert to fraction form
    77,563.44/107,020.92 = 45,283.38/x
  3. Step 3: Cross multiply
    77,563.44x = 107,020.92 × 45,283.38
  4. Step 4: Simplify right side
    77,563.44x = 4,846,268,988.31
  5. Step 5: Solve for x
    x = 4,846,268,988.31/77,563.44
  6. Step 6: Final answer
    x = 62,481.36

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1.5x scale

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.