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Finding the Fourth Proportional to 43,927, 65,956.12 and 43,270.90

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Solution

The fourth proportional to 43,927, 65,956.12 and 43,270.90 is: 64,970.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,927 : 65,956.12 = 43,270.90 : x
  2. Step 2: Convert to fraction form
    43,927/65,956.12 = 43,270.90/x
  3. Step 3: Cross multiply
    43,927x = 65,956.12 × 43,270.90
  4. Step 4: Simplify right side
    43,927x = 2,853,980,672.91
  5. Step 5: Solve for x
    x = 2,853,980,672.91/43,927
  6. Step 6: Final answer
    x = 64,970.99

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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.