Home / 76,777.11-115,271.57-53,028.85

Finding the Fourth Proportional to 76,777.11, 115,271.57 and 53,028.85

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Solution

The fourth proportional to 76,777.11, 115,271.57 and 53,028.85 is: 79,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,777.11 : 115,271.57 = 53,028.85 : x
  2. Step 2: Convert to fraction form
    76,777.11/115,271.57 = 53,028.85/x
  3. Step 3: Cross multiply
    76,777.11x = 115,271.57 × 53,028.85
  4. Step 4: Simplify right side
    76,777.11x = 6,112,718,794.79
  5. Step 5: Solve for x
    x = 6,112,718,794.79/76,777.11
  6. Step 6: Final answer
    x = 79,616.42

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1.5x scale

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.