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Finding the Fourth Proportional to 43,972.77, 65,961 and 12,808.02

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Solution

The fourth proportional to 43,972.77, 65,961 and 12,808.02 is: 19,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,972.77 : 65,961 = 12,808.02 : x
  2. Step 2: Convert to fraction form
    43,972.77/65,961 = 12,808.02/x
  3. Step 3: Cross multiply
    43,972.77x = 65,961 × 12,808.02
  4. Step 4: Simplify right side
    43,972.77x = 844,829,807.22
  5. Step 5: Solve for x
    x = 844,829,807.22/43,972.77
  6. Step 6: Final answer
    x = 19,212.57

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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.