Home / 81,160.37-111,987.63-45,350.67

Finding the Fourth Proportional to 81,160.37, 111,987.63 and 45,350.67

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Solution

The fourth proportional to 81,160.37, 111,987.63 and 45,350.67 is: 62,576.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,160.37 : 111,987.63 = 45,350.67 : x
  2. Step 2: Convert to fraction form
    81,160.37/111,987.63 = 45,350.67/x
  3. Step 3: Cross multiply
    81,160.37x = 111,987.63 × 45,350.67
  4. Step 4: Simplify right side
    81,160.37x = 5,078,714,052.21
  5. Step 5: Solve for x
    x = 5,078,714,052.21/81,160.37
  6. Step 6: Final answer
    x = 62,576.28

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1.5x scale

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.