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Finding the Fourth Proportional to 43,087.67, 64,631.02 and 16,810.86

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Solution

The fourth proportional to 43,087.67, 64,631.02 and 16,810.86 is: 25,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,087.67 : 64,631.02 = 16,810.86 : x
  2. Step 2: Convert to fraction form
    43,087.67/64,631.02 = 16,810.86/x
  3. Step 3: Cross multiply
    43,087.67x = 64,631.02 × 16,810.86
  4. Step 4: Simplify right side
    43,087.67x = 1,086,503,028.88
  5. Step 5: Solve for x
    x = 1,086,503,028.88/43,087.67
  6. Step 6: Final answer
    x = 25,216.10

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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.