Home / 64,664.20-96,996.12-20,291.14

Finding the Fourth Proportional to 64,664.20, 96,996.12 and 20,291.14

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Solution

The fourth proportional to 64,664.20, 96,996.12 and 20,291.14 is: 30,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,664.20 : 96,996.12 = 20,291.14 : x
  2. Step 2: Convert to fraction form
    64,664.20/96,996.12 = 20,291.14/x
  3. Step 3: Cross multiply
    64,664.20x = 96,996.12 × 20,291.14
  4. Step 4: Simplify right side
    64,664.20x = 1,968,161,850.38
  5. Step 5: Solve for x
    x = 1,968,161,850.38/64,664.20
  6. Step 6: Final answer
    x = 30,436.65

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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.