Home / 45,889.07-68,833.83-20,912.16

Finding the Fourth Proportional to 45,889.07, 68,833.83 and 20,912.16

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Solution

The fourth proportional to 45,889.07, 68,833.83 and 20,912.16 is: 31,368.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,889.07 : 68,833.83 = 20,912.16 : x
  2. Step 2: Convert to fraction form
    45,889.07/68,833.83 = 20,912.16/x
  3. Step 3: Cross multiply
    45,889.07x = 68,833.83 × 20,912.16
  4. Step 4: Simplify right side
    45,889.07x = 1,439,464,015.73
  5. Step 5: Solve for x
    x = 1,439,464,015.73/45,889.07
  6. Step 6: Final answer
    x = 31,368.34

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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.