Home / 45,979.33-68,905.20-20,958.22

Finding the Fourth Proportional to 45,979.33, 68,905.20 and 20,958.22

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Solution

The fourth proportional to 45,979.33, 68,905.20 and 20,958.22 is: 31,408.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,979.33 : 68,905.20 = 20,958.22 : x
  2. Step 2: Convert to fraction form
    45,979.33/68,905.20 = 20,958.22/x
  3. Step 3: Cross multiply
    45,979.33x = 68,905.20 × 20,958.22
  4. Step 4: Simplify right side
    45,979.33x = 1,444,130,340.74
  5. Step 5: Solve for x
    x = 1,444,130,340.74/45,979.33
  6. Step 6: Final answer
    x = 31,408.25

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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.