Home / 45,983.25-68,912.51-20,992.32

Finding the Fourth Proportional to 45,983.25, 68,912.51 and 20,992.32

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Solution

The fourth proportional to 45,983.25, 68,912.51 and 20,992.32 is: 31,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,983.25 : 68,912.51 = 20,992.32 : x
  2. Step 2: Convert to fraction form
    45,983.25/68,912.51 = 20,992.32/x
  3. Step 3: Cross multiply
    45,983.25x = 68,912.51 × 20,992.32
  4. Step 4: Simplify right side
    45,983.25x = 1,446,633,356.96
  5. Step 5: Solve for x
    x = 1,446,633,356.96/45,983.25
  6. Step 6: Final answer
    x = 31,460.01

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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.