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Finding the Fourth Proportional to 64,384.74, 96,546.47 and 20,012.13

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Solution

The fourth proportional to 64,384.74, 96,546.47 and 20,012.13 is: 30,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,384.74 : 96,546.47 = 20,012.13 : x
  2. Step 2: Convert to fraction form
    64,384.74/96,546.47 = 20,012.13/x
  3. Step 3: Cross multiply
    64,384.74x = 96,546.47 × 20,012.13
  4. Step 4: Simplify right side
    64,384.74x = 1,932,100,408.62
  5. Step 5: Solve for x
    x = 1,932,100,408.62/64,384.74
  6. Step 6: Final answer
    x = 30,008.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.