Home / 64,805.36-97,198.82-20,426.35

Finding the Fourth Proportional to 64,805.36, 97,198.82 and 20,426.35

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Solution

The fourth proportional to 64,805.36, 97,198.82 and 20,426.35 is: 30,636.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,805.36 : 97,198.82 = 20,426.35 : x
  2. Step 2: Convert to fraction form
    64,805.36/97,198.82 = 20,426.35/x
  3. Step 3: Cross multiply
    64,805.36x = 97,198.82 × 20,426.35
  4. Step 4: Simplify right side
    64,805.36x = 1,985,416,771.78
  5. Step 5: Solve for x
    x = 1,985,416,771.78/64,805.36
  6. Step 6: Final answer
    x = 30,636.61

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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.