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Finding the Fourth Proportional to 67,754.54, 101,655.39 and 30,318.57

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Solution

The fourth proportional to 67,754.54, 101,655.39 and 30,318.57 is: 45,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,754.54 : 101,655.39 = 30,318.57 : x
  2. Step 2: Convert to fraction form
    67,754.54/101,655.39 = 30,318.57/x
  3. Step 3: Cross multiply
    67,754.54x = 101,655.39 × 30,318.57
  4. Step 4: Simplify right side
    67,754.54x = 3,082,045,549.32
  5. Step 5: Solve for x
    x = 3,082,045,549.32/67,754.54
  6. Step 6: Final answer
    x = 45,488.40

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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.