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Finding the Fourth Proportional to 67,401.16, 101,092.93 and 20,015.28

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Solution

The fourth proportional to 67,401.16, 101,092.93 and 20,015.28 is: 30,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,401.16 : 101,092.93 = 20,015.28 : x
  2. Step 2: Convert to fraction form
    67,401.16/101,092.93 = 20,015.28/x
  3. Step 3: Cross multiply
    67,401.16x = 101,092.93 × 20,015.28
  4. Step 4: Simplify right side
    67,401.16x = 2,023,403,249.93
  5. Step 5: Solve for x
    x = 2,023,403,249.93/67,401.16
  6. Step 6: Final answer
    x = 30,020.30

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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.