Home / 68,309.42-102,464.39-20,924.32

Finding the Fourth Proportional to 68,309.42, 102,464.39 and 20,924.32

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Solution

The fourth proportional to 68,309.42, 102,464.39 and 20,924.32 is: 31,386.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,309.42 : 102,464.39 = 20,924.32 : x
  2. Step 2: Convert to fraction form
    68,309.42/102,464.39 = 20,924.32/x
  3. Step 3: Cross multiply
    68,309.42x = 102,464.39 × 20,924.32
  4. Step 4: Simplify right side
    68,309.42x = 2,143,997,580.34
  5. Step 5: Solve for x
    x = 2,143,997,580.34/68,309.42
  6. Step 6: Final answer
    x = 31,386.56

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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.