Home / 77,389.06-116,119.14-45,861.64

Finding the Fourth Proportional to 77,389.06, 116,119.14 and 45,861.64

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Solution

The fourth proportional to 77,389.06, 116,119.14 and 45,861.64 is: 68,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,389.06 : 116,119.14 = 45,861.64 : x
  2. Step 2: Convert to fraction form
    77,389.06/116,119.14 = 45,861.64/x
  3. Step 3: Cross multiply
    77,389.06x = 116,119.14 × 45,861.64
  4. Step 4: Simplify right side
    77,389.06x = 5,325,414,195.79
  5. Step 5: Solve for x
    x = 5,325,414,195.79/77,389.06
  6. Step 6: Final answer
    x = 68,813.53

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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.