Home / 64,819.70-89,447.45-36,138.41

Finding the Fourth Proportional to 64,819.70, 89,447.45 and 36,138.41

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Solution

The fourth proportional to 64,819.70, 89,447.45 and 36,138.41 is: 49,868.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,819.70 : 89,447.45 = 36,138.41 : x
  2. Step 2: Convert to fraction form
    64,819.70/89,447.45 = 36,138.41/x
  3. Step 3: Cross multiply
    64,819.70x = 89,447.45 × 36,138.41
  4. Step 4: Simplify right side
    64,819.70x = 3,232,488,621.55
  5. Step 5: Solve for x
    x = 3,232,488,621.55/64,819.70
  6. Step 6: Final answer
    x = 49,868.92

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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.