Home / 45,097.05-67,646.04-20,138.37

Finding the Fourth Proportional to 45,097.05, 67,646.04 and 20,138.37

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Solution

The fourth proportional to 45,097.05, 67,646.04 and 20,138.37 is: 30,207.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,097.05 : 67,646.04 = 20,138.37 : x
  2. Step 2: Convert to fraction form
    45,097.05/67,646.04 = 20,138.37/x
  3. Step 3: Cross multiply
    45,097.05x = 67,646.04 × 20,138.37
  4. Step 4: Simplify right side
    45,097.05x = 1,362,281,033.87
  5. Step 5: Solve for x
    x = 1,362,281,033.87/45,097.05
  6. Step 6: Final answer
    x = 30,207.76

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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.