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Finding the Fourth Proportional to 71,600.90, 107,393.12 and 19,014.50

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Solution

The fourth proportional to 71,600.90, 107,393.12 and 19,014.50 is: 28,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,600.90 : 107,393.12 = 19,014.50 : x
  2. Step 2: Convert to fraction form
    71,600.90/107,393.12 = 19,014.50/x
  3. Step 3: Cross multiply
    71,600.90x = 107,393.12 × 19,014.50
  4. Step 4: Simplify right side
    71,600.90x = 2,042,026,480.24
  5. Step 5: Solve for x
    x = 2,042,026,480.24/71,600.90
  6. Step 6: Final answer
    x = 28,519.56

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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.