Home / 45,475.81-68,222.96-19,180.64

Finding the Fourth Proportional to 45,475.81, 68,222.96 and 19,180.64

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Solution

The fourth proportional to 45,475.81, 68,222.96 and 19,180.64 is: 28,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,475.81 : 68,222.96 = 19,180.64 : x
  2. Step 2: Convert to fraction form
    45,475.81/68,222.96 = 19,180.64/x
  3. Step 3: Cross multiply
    45,475.81x = 68,222.96 × 19,180.64
  4. Step 4: Simplify right side
    45,475.81x = 1,308,560,035.49
  5. Step 5: Solve for x
    x = 1,308,560,035.49/45,475.81
  6. Step 6: Final answer
    x = 28,774.86

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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.