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Finding the Fourth Proportional to 66,384, 99,576.18 and 17,136

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Solution

The fourth proportional to 66,384, 99,576.18 and 17,136 is: 25,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384 : 99,576.18 = 17,136 : x
  2. Step 2: Convert to fraction form
    66,384/99,576.18 = 17,136/x
  3. Step 3: Cross multiply
    66,384x = 99,576.18 × 17,136
  4. Step 4: Simplify right side
    66,384x = 1,706,337,420.48
  5. Step 5: Solve for x
    x = 1,706,337,420.48/66,384
  6. Step 6: Final answer
    x = 25,704.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.