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Finding the Fourth Proportional to 68,510, 102,765.04 and 19,262

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Solution

The fourth proportional to 68,510, 102,765.04 and 19,262 is: 28,893.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,510 : 102,765.04 = 19,262 : x
  2. Step 2: Convert to fraction form
    68,510/102,765.04 = 19,262/x
  3. Step 3: Cross multiply
    68,510x = 102,765.04 × 19,262
  4. Step 4: Simplify right side
    68,510x = 1,979,460,200.48
  5. Step 5: Solve for x
    x = 1,979,460,200.48/68,510
  6. Step 6: Final answer
    x = 28,893.01

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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.