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Finding the Fourth Proportional to 45,695, 68,552.60 and 19,422.20

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Solution

The fourth proportional to 45,695, 68,552.60 and 19,422.20 is: 29,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,695 : 68,552.60 = 19,422.20 : x
  2. Step 2: Convert to fraction form
    45,695/68,552.60 = 19,422.20/x
  3. Step 3: Cross multiply
    45,695x = 68,552.60 × 19,422.20
  4. Step 4: Simplify right side
    45,695x = 1,331,442,307.72
  5. Step 5: Solve for x
    x = 1,331,442,307.72/45,695
  6. Step 6: Final answer
    x = 29,137.59

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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.