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Finding the Fourth Proportional to 63,989.40, 95,940.90 and 34,008.60

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Solution

The fourth proportional to 63,989.40, 95,940.90 and 34,008.60 is: 50,989.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.40 : 95,940.90 = 34,008.60 : x
  2. Step 2: Convert to fraction form
    63,989.40/95,940.90 = 34,008.60/x
  3. Step 3: Cross multiply
    63,989.40x = 95,940.90 × 34,008.60
  4. Step 4: Simplify right side
    63,989.40x = 3,262,815,691.74
  5. Step 5: Solve for x
    x = 3,262,815,691.74/63,989.40
  6. Step 6: Final answer
    x = 50,989.94

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1.5x scale

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.