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Finding the Fourth Proportional to 71,601.98, 107,394.66 and 19,015.58

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Solution

The fourth proportional to 71,601.98, 107,394.66 and 19,015.58 is: 28,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,601.98 : 107,394.66 = 19,015.58 : x
  2. Step 2: Convert to fraction form
    71,601.98/107,394.66 = 19,015.58/x
  3. Step 3: Cross multiply
    71,601.98x = 107,394.66 × 19,015.58
  4. Step 4: Simplify right side
    71,601.98x = 2,042,171,748.80
  5. Step 5: Solve for x
    x = 2,042,171,748.80/71,601.98
  6. Step 6: Final answer
    x = 28,521.16

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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.