Home / 76,481.44-105,527.24-42,945.28

Finding the Fourth Proportional to 76,481.44, 105,527.24 and 42,945.28

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Solution

The fourth proportional to 76,481.44, 105,527.24 and 42,945.28 is: 59,254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,481.44 : 105,527.24 = 42,945.28 : x
  2. Step 2: Convert to fraction form
    76,481.44/105,527.24 = 42,945.28/x
  3. Step 3: Cross multiply
    76,481.44x = 105,527.24 × 42,945.28
  4. Step 4: Simplify right side
    76,481.44x = 4,531,896,869.43
  5. Step 5: Solve for x
    x = 4,531,896,869.43/76,481.44
  6. Step 6: Final answer
    x = 59,254.86

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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.