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Finding the Fourth Proportional to 67,545, 101,317.50 and 18,297

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Solution

The fourth proportional to 67,545, 101,317.50 and 18,297 is: 27,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,545 : 101,317.50 = 18,297 : x
  2. Step 2: Convert to fraction form
    67,545/101,317.50 = 18,297/x
  3. Step 3: Cross multiply
    67,545x = 101,317.50 × 18,297
  4. Step 4: Simplify right side
    67,545x = 1,853,806,297.50
  5. Step 5: Solve for x
    x = 1,853,806,297.50/67,545
  6. Step 6: Final answer
    x = 27,445.50

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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.