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Finding the Fourth Proportional to 67,399.14, 101,095.06 and 20,652.15

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Solution

The fourth proportional to 67,399.14, 101,095.06 and 20,652.15 is: 30,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,399.14 : 101,095.06 = 20,652.15 : x
  2. Step 2: Convert to fraction form
    67,399.14/101,095.06 = 20,652.15/x
  3. Step 3: Cross multiply
    67,399.14x = 101,095.06 × 20,652.15
  4. Step 4: Simplify right side
    67,399.14x = 2,087,829,734.64
  5. Step 5: Solve for x
    x = 2,087,829,734.64/67,399.14
  6. Step 6: Final answer
    x = 30,977.10

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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.