Home / 115,321.31-172,989.26-48,752.67

Finding the Fourth Proportional to 115,321.31, 172,989.26 and 48,752.67

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Solution

The fourth proportional to 115,321.31, 172,989.26 and 48,752.67 is: 73,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,321.31 : 172,989.26 = 48,752.67 : x
  2. Step 2: Convert to fraction form
    115,321.31/172,989.26 = 48,752.67/x
  3. Step 3: Cross multiply
    115,321.31x = 172,989.26 × 48,752.67
  4. Step 4: Simplify right side
    115,321.31x = 8,433,688,062.56
  5. Step 5: Solve for x
    x = 8,433,688,062.56/115,321.31
  6. Step 6: Final answer
    x = 73,132.09

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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.