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Finding the Fourth Proportional to 64,689, 97,033.50 and 17,941.88

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Solution

The fourth proportional to 64,689, 97,033.50 and 17,941.88 is: 26,912.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,689 : 97,033.50 = 17,941.88 : x
  2. Step 2: Convert to fraction form
    64,689/97,033.50 = 17,941.88/x
  3. Step 3: Cross multiply
    64,689x = 97,033.50 × 17,941.88
  4. Step 4: Simplify right side
    64,689x = 1,740,963,412.98
  5. Step 5: Solve for x
    x = 1,740,963,412.98/64,689
  6. Step 6: Final answer
    x = 26,912.82

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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.