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Finding the Fourth Proportional to 64,988.25, 97,467.39 and 20,606.73

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Solution

The fourth proportional to 64,988.25, 97,467.39 and 20,606.73 is: 30,905.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,988.25 : 97,467.39 = 20,606.73 : x
  2. Step 2: Convert to fraction form
    64,988.25/97,467.39 = 20,606.73/x
  3. Step 3: Cross multiply
    64,988.25x = 97,467.39 × 20,606.73
  4. Step 4: Simplify right side
    64,988.25x = 2,008,484,189.53
  5. Step 5: Solve for x
    x = 2,008,484,189.53/64,988.25
  6. Step 6: Final answer
    x = 30,905.34

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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.