Home / 75,905.28-104,749.44-42,372.48

Finding the Fourth Proportional to 75,905.28, 104,749.44 and 42,372.48

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Solution

The fourth proportional to 75,905.28, 104,749.44 and 42,372.48 is: 58,474.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,905.28 : 104,749.44 = 42,372.48 : x
  2. Step 2: Convert to fraction form
    75,905.28/104,749.44 = 42,372.48/x
  3. Step 3: Cross multiply
    75,905.28x = 104,749.44 × 42,372.48
  4. Step 4: Simplify right side
    75,905.28x = 4,438,493,551.41
  5. Step 5: Solve for x
    x = 4,438,493,551.41/75,905.28
  6. Step 6: Final answer
    x = 58,474.11

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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.