Home / 75,907.20-104,749.76-42,372.48

Finding the Fourth Proportional to 75,907.20, 104,749.76 and 42,372.48

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Solution

The fourth proportional to 75,907.20, 104,749.76 and 42,372.48 is: 58,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,907.20 : 104,749.76 = 42,372.48 : x
  2. Step 2: Convert to fraction form
    75,907.20/104,749.76 = 42,372.48/x
  3. Step 3: Cross multiply
    75,907.20x = 104,749.76 × 42,372.48
  4. Step 4: Simplify right side
    75,907.20x = 4,438,507,110.60
  5. Step 5: Solve for x
    x = 4,438,507,110.60/75,907.20
  6. Step 6: Final answer
    x = 58,472.81

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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.