Home / 75,020.87-103,566.44-57,986.66

Finding the Fourth Proportional to 75,020.87, 103,566.44 and 57,986.66

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Solution

The fourth proportional to 75,020.87, 103,566.44 and 57,986.66 is: 80,050.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,020.87 : 103,566.44 = 57,986.66 : x
  2. Step 2: Convert to fraction form
    75,020.87/103,566.44 = 57,986.66/x
  3. Step 3: Cross multiply
    75,020.87x = 103,566.44 × 57,986.66
  4. Step 4: Simplify right side
    75,020.87x = 6,005,471,135.92
  5. Step 5: Solve for x
    x = 6,005,471,135.92/75,020.87
  6. Step 6: Final answer
    x = 80,050.68

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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.