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Finding the Fourth Proportional to 67,290.63, 100,950.73 and 19,902.03

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Solution

The fourth proportional to 67,290.63, 100,950.73 and 19,902.03 is: 29,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,290.63 : 100,950.73 = 19,902.03 : x
  2. Step 2: Convert to fraction form
    67,290.63/100,950.73 = 19,902.03/x
  3. Step 3: Cross multiply
    67,290.63x = 100,950.73 × 19,902.03
  4. Step 4: Simplify right side
    67,290.63x = 2,009,124,456.98
  5. Step 5: Solve for x
    x = 2,009,124,456.98/67,290.63
  6. Step 6: Final answer
    x = 29,857.42

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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.