Home / 45,712.96-68,544.78-20,739.38

Finding the Fourth Proportional to 45,712.96, 68,544.78 and 20,739.38

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Solution

The fourth proportional to 45,712.96, 68,544.78 and 20,739.38 is: 31,097.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,712.96 : 68,544.78 = 20,739.38 : x
  2. Step 2: Convert to fraction form
    45,712.96/68,544.78 = 20,739.38/x
  3. Step 3: Cross multiply
    45,712.96x = 68,544.78 × 20,739.38
  4. Step 4: Simplify right side
    45,712.96x = 1,421,576,153.76
  5. Step 5: Solve for x
    x = 1,421,576,153.76/45,712.96
  6. Step 6: Final answer
    x = 31,097.88

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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.