Home / 77,776.27-116,638.46-30,379.07

Finding the Fourth Proportional to 77,776.27, 116,638.46 and 30,379.07

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Solution

The fourth proportional to 77,776.27, 116,638.46 and 30,379.07 is: 45,558.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,776.27 : 116,638.46 = 30,379.07 : x
  2. Step 2: Convert to fraction form
    77,776.27/116,638.46 = 30,379.07/x
  3. Step 3: Cross multiply
    77,776.27x = 116,638.46 × 30,379.07
  4. Step 4: Simplify right side
    77,776.27x = 3,543,368,194.65
  5. Step 5: Solve for x
    x = 3,543,368,194.65/77,776.27
  6. Step 6: Final answer
    x = 45,558.48

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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.