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Finding the Fourth Proportional to 64,377.40, 96,573.30 and 20,003.80

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Solution

The fourth proportional to 64,377.40, 96,573.30 and 20,003.80 is: 30,007.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,377.40 : 96,573.30 = 20,003.80 : x
  2. Step 2: Convert to fraction form
    64,377.40/96,573.30 = 20,003.80/x
  3. Step 3: Cross multiply
    64,377.40x = 96,573.30 × 20,003.80
  4. Step 4: Simplify right side
    64,377.40x = 1,931,832,978.54
  5. Step 5: Solve for x
    x = 1,931,832,978.54/64,377.40
  6. Step 6: Final answer
    x = 30,007.94

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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.