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Finding the Fourth Proportional to 79,361.75, 119,041.31 and 31,975.69

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Solution

The fourth proportional to 79,361.75, 119,041.31 and 31,975.69 is: 47,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,361.75 : 119,041.31 = 31,975.69 : x
  2. Step 2: Convert to fraction form
    79,361.75/119,041.31 = 31,975.69/x
  3. Step 3: Cross multiply
    79,361.75x = 119,041.31 × 31,975.69
  4. Step 4: Simplify right side
    79,361.75x = 3,806,427,808.09
  5. Step 5: Solve for x
    x = 3,806,427,808.09/79,361.75
  6. Step 6: Final answer
    x = 47,963.01

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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.