Home / 75,491.52-113,172.21-31,090.56

Finding the Fourth Proportional to 75,491.52, 113,172.21 and 31,090.56

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Solution

The fourth proportional to 75,491.52, 113,172.21 and 31,090.56 is: 46,609.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,491.52 : 113,172.21 = 31,090.56 : x
  2. Step 2: Convert to fraction form
    75,491.52/113,172.21 = 31,090.56/x
  3. Step 3: Cross multiply
    75,491.52x = 113,172.21 × 31,090.56
  4. Step 4: Simplify right side
    75,491.52x = 3,518,587,385.34
  5. Step 5: Solve for x
    x = 3,518,587,385.34/75,491.52
  6. Step 6: Final answer
    x = 46,609.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.