Home / 75,663.21-104,405.56-45,453.91

Finding the Fourth Proportional to 75,663.21, 104,405.56 and 45,453.91

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Solution

The fourth proportional to 75,663.21, 104,405.56 and 45,453.91 is: 62,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,663.21 : 104,405.56 = 45,453.91 : x
  2. Step 2: Convert to fraction form
    75,663.21/104,405.56 = 45,453.91/x
  3. Step 3: Cross multiply
    75,663.21x = 104,405.56 × 45,453.91
  4. Step 4: Simplify right side
    75,663.21x = 4,745,640,748.85
  5. Step 5: Solve for x
    x = 4,745,640,748.85/75,663.21
  6. Step 6: Final answer
    x = 62,720.58

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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.