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Finding the Fourth Proportional to 45,658.68, 68,493.48 and 19,360

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Solution

The fourth proportional to 45,658.68, 68,493.48 and 19,360 is: 29,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,658.68 : 68,493.48 = 19,360 : x
  2. Step 2: Convert to fraction form
    45,658.68/68,493.48 = 19,360/x
  3. Step 3: Cross multiply
    45,658.68x = 68,493.48 × 19,360
  4. Step 4: Simplify right side
    45,658.68x = 1,326,033,772.80
  5. Step 5: Solve for x
    x = 1,326,033,772.80/45,658.68
  6. Step 6: Final answer
    x = 29,042.32

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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.