Home / 75,282.81-103,889.57-41,290.61

Finding the Fourth Proportional to 75,282.81, 103,889.57 and 41,290.61

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Solution

The fourth proportional to 75,282.81, 103,889.57 and 41,290.61 is: 56,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,282.81 : 103,889.57 = 41,290.61 : x
  2. Step 2: Convert to fraction form
    75,282.81/103,889.57 = 41,290.61/x
  3. Step 3: Cross multiply
    75,282.81x = 103,889.57 × 41,290.61
  4. Step 4: Simplify right side
    75,282.81x = 4,289,663,198.49
  5. Step 5: Solve for x
    x = 4,289,663,198.49/75,282.81
  6. Step 6: Final answer
    x = 56,980.65

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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.