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Finding the Fourth Proportional to 71,454.18, 107,192.21 and 18,867.77

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Solution

The fourth proportional to 71,454.18, 107,192.21 and 18,867.77 is: 28,304.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,454.18 : 107,192.21 = 18,867.77 : x
  2. Step 2: Convert to fraction form
    71,454.18/107,192.21 = 18,867.77/x
  3. Step 3: Cross multiply
    71,454.18x = 107,192.21 × 18,867.77
  4. Step 4: Simplify right side
    71,454.18x = 2,022,477,333.77
  5. Step 5: Solve for x
    x = 2,022,477,333.77/71,454.18
  6. Step 6: Final answer
    x = 28,304.53

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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.