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Finding the Fourth Proportional to 70,029.81, 104,867.30 and 43,427.75

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Solution

The fourth proportional to 70,029.81, 104,867.30 and 43,427.75 is: 65,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,029.81 : 104,867.30 = 43,427.75 : x
  2. Step 2: Convert to fraction form
    70,029.81/104,867.30 = 43,427.75/x
  3. Step 3: Cross multiply
    70,029.81x = 104,867.30 × 43,427.75
  4. Step 4: Simplify right side
    70,029.81x = 4,554,150,471.81
  5. Step 5: Solve for x
    x = 4,554,150,471.81/70,029.81
  6. Step 6: Final answer
    x = 65,031.60

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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.