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Finding the Fourth Proportional to 68,970.93, 103,456.24 and 19,050.90

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Solution

The fourth proportional to 68,970.93, 103,456.24 and 19,050.90 is: 28,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,970.93 : 103,456.24 = 19,050.90 : x
  2. Step 2: Convert to fraction form
    68,970.93/103,456.24 = 19,050.90/x
  3. Step 3: Cross multiply
    68,970.93x = 103,456.24 × 19,050.90
  4. Step 4: Simplify right side
    68,970.93x = 1,970,934,047.03
  5. Step 5: Solve for x
    x = 1,970,934,047.03/68,970.93
  6. Step 6: Final answer
    x = 28,576.30

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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.