Home / 87,837.44-121,215.70-47,551.20

Finding the Fourth Proportional to 87,837.44, 121,215.70 and 47,551.20

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Solution

The fourth proportional to 87,837.44, 121,215.70 and 47,551.20 is: 65,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.44 : 121,215.70 = 47,551.20 : x
  2. Step 2: Convert to fraction form
    87,837.44/121,215.70 = 47,551.20/x
  3. Step 3: Cross multiply
    87,837.44x = 121,215.70 × 47,551.20
  4. Step 4: Simplify right side
    87,837.44x = 5,763,951,150.01
  5. Step 5: Solve for x
    x = 5,763,951,150.01/87,837.44
  6. Step 6: Final answer
    x = 65,620.67

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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.