Home / 47,089.92-64,963.20-31,180.80

Finding the Fourth Proportional to 47,089.92, 64,963.20 and 31,180.80

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Solution

The fourth proportional to 47,089.92, 64,963.20 and 31,180.80 is: 43,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,089.92 : 64,963.20 = 31,180.80 : x
  2. Step 2: Convert to fraction form
    47,089.92/64,963.20 = 31,180.80/x
  3. Step 3: Cross multiply
    47,089.92x = 64,963.20 × 31,180.80
  4. Step 4: Simplify right side
    47,089.92x = 2,025,604,546.56
  5. Step 5: Solve for x
    x = 2,025,604,546.56/47,089.92
  6. Step 6: Final answer
    x = 43,015.67

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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.