Home / 77,094.13-115,684.93-30,379.81

Finding the Fourth Proportional to 77,094.13, 115,684.93 and 30,379.81

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Solution

The fourth proportional to 77,094.13, 115,684.93 and 30,379.81 is: 45,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,094.13 : 115,684.93 = 30,379.81 : x
  2. Step 2: Convert to fraction form
    77,094.13/115,684.93 = 30,379.81/x
  3. Step 3: Cross multiply
    77,094.13x = 115,684.93 × 30,379.81
  4. Step 4: Simplify right side
    77,094.13x = 3,514,485,942.03
  5. Step 5: Solve for x
    x = 3,514,485,942.03/77,094.13
  6. Step 6: Final answer
    x = 45,586.95

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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.