Home / 77,766.54-116,790.34-71,515.02

Finding the Fourth Proportional to 77,766.54, 116,790.34 and 71,515.02

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Solution

The fourth proportional to 77,766.54, 116,790.34 and 71,515.02 is: 107,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,766.54 : 116,790.34 = 71,515.02 : x
  2. Step 2: Convert to fraction form
    77,766.54/116,790.34 = 71,515.02/x
  3. Step 3: Cross multiply
    77,766.54x = 116,790.34 × 71,515.02
  4. Step 4: Simplify right side
    77,766.54x = 8,352,263,500.91
  5. Step 5: Solve for x
    x = 8,352,263,500.91/77,766.54
  6. Step 6: Final answer
    x = 107,401.76

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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.