Home / 45,393.54-68,107.32-20,426.10

Finding the Fourth Proportional to 45,393.54, 68,107.32 and 20,426.10

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Solution

The fourth proportional to 45,393.54, 68,107.32 and 20,426.10 is: 30,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,393.54 : 68,107.32 = 20,426.10 : x
  2. Step 2: Convert to fraction form
    45,393.54/68,107.32 = 20,426.10/x
  3. Step 3: Cross multiply
    45,393.54x = 68,107.32 × 20,426.10
  4. Step 4: Simplify right side
    45,393.54x = 1,391,166,929.05
  5. Step 5: Solve for x
    x = 1,391,166,929.05/45,393.54
  6. Step 6: Final answer
    x = 30,646.80

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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.