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Finding the Fourth Proportional to 64,586.49, 96,881.49 and 20,212.26

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Solution

The fourth proportional to 64,586.49, 96,881.49 and 20,212.26 is: 30,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,586.49 : 96,881.49 = 20,212.26 : x
  2. Step 2: Convert to fraction form
    64,586.49/96,881.49 = 20,212.26/x
  3. Step 3: Cross multiply
    64,586.49x = 96,881.49 × 20,212.26
  4. Step 4: Simplify right side
    64,586.49x = 1,958,193,865.07
  5. Step 5: Solve for x
    x = 1,958,193,865.07/64,586.49
  6. Step 6: Final answer
    x = 30,318.94

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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.