Home / 45,919.18-68,905.37-19,262.81

Finding the Fourth Proportional to 45,919.18, 68,905.37 and 19,262.81

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Solution

The fourth proportional to 45,919.18, 68,905.37 and 19,262.81 is: 28,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.18 : 68,905.37 = 19,262.81 : x
  2. Step 2: Convert to fraction form
    45,919.18/68,905.37 = 19,262.81/x
  3. Step 3: Cross multiply
    45,919.18x = 68,905.37 × 19,262.81
  4. Step 4: Simplify right side
    45,919.18x = 1,327,311,243.62
  5. Step 5: Solve for x
    x = 1,327,311,243.62/45,919.18
  6. Step 6: Final answer
    x = 28,905.38

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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.