Home / 75,286.23-103,896.45-45,072.87

Finding the Fourth Proportional to 75,286.23, 103,896.45 and 45,072.87

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Solution

The fourth proportional to 75,286.23, 103,896.45 and 45,072.87 is: 62,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,286.23 : 103,896.45 = 45,072.87 : x
  2. Step 2: Convert to fraction form
    75,286.23/103,896.45 = 45,072.87/x
  3. Step 3: Cross multiply
    75,286.23x = 103,896.45 × 45,072.87
  4. Step 4: Simplify right side
    75,286.23x = 4,682,911,184.31
  5. Step 5: Solve for x
    x = 4,682,911,184.31/75,286.23
  6. Step 6: Final answer
    x = 62,201.43

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1.5x scale

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.