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Finding the Fourth Proportional to 75,271.50, 103,890.87 and 45,063.56

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Solution

The fourth proportional to 75,271.50, 103,890.87 and 45,063.56 is: 62,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,271.50 : 103,890.87 = 45,063.56 : x
  2. Step 2: Convert to fraction form
    75,271.50/103,890.87 = 45,063.56/x
  3. Step 3: Cross multiply
    75,271.50x = 103,890.87 × 45,063.56
  4. Step 4: Simplify right side
    75,271.50x = 4,681,692,713.42
  5. Step 5: Solve for x
    x = 4,681,692,713.42/75,271.50
  6. Step 6: Final answer
    x = 62,197.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.