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Finding the Fourth Proportional to 67,433.40, 101,150.10 and 20,680.20

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Solution

The fourth proportional to 67,433.40, 101,150.10 and 20,680.20 is: 31,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,433.40 : 101,150.10 = 20,680.20 : x
  2. Step 2: Convert to fraction form
    67,433.40/101,150.10 = 20,680.20/x
  3. Step 3: Cross multiply
    67,433.40x = 101,150.10 × 20,680.20
  4. Step 4: Simplify right side
    67,433.40x = 2,091,804,298.02
  5. Step 5: Solve for x
    x = 2,091,804,298.02/67,433.40
  6. Step 6: Final answer
    x = 31,020.30

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1.5x scale

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.