Home / 77,513.16-116,246.62-30,135.61

Finding the Fourth Proportional to 77,513.16, 116,246.62 and 30,135.61

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Solution

The fourth proportional to 77,513.16, 116,246.62 and 30,135.61 is: 45,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,513.16 : 116,246.62 = 30,135.61 : x
  2. Step 2: Convert to fraction form
    77,513.16/116,246.62 = 30,135.61/x
  3. Step 3: Cross multiply
    77,513.16x = 116,246.62 × 30,135.61
  4. Step 4: Simplify right side
    77,513.16x = 3,503,162,804.14
  5. Step 5: Solve for x
    x = 3,503,162,804.14/77,513.16
  6. Step 6: Final answer
    x = 45,194.43

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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.