Home / 64,977.70-89,749.20-47,044.30

Finding the Fourth Proportional to 64,977.70, 89,749.20 and 47,044.30

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Solution

The fourth proportional to 64,977.70, 89,749.20 and 47,044.30 is: 64,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,977.70 : 89,749.20 = 47,044.30 : x
  2. Step 2: Convert to fraction form
    64,977.70/89,749.20 = 47,044.30/x
  3. Step 3: Cross multiply
    64,977.70x = 89,749.20 × 47,044.30
  4. Step 4: Simplify right side
    64,977.70x = 4,222,188,289.56
  5. Step 5: Solve for x
    x = 4,222,188,289.56/64,977.70
  6. Step 6: Final answer
    x = 64,979.04

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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.