Home / 76,857.38-115,303.10-23,556.72

Finding the Fourth Proportional to 76,857.38, 115,303.10 and 23,556.72

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Solution

The fourth proportional to 76,857.38, 115,303.10 and 23,556.72 is: 35,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,857.38 : 115,303.10 = 23,556.72 : x
  2. Step 2: Convert to fraction form
    76,857.38/115,303.10 = 23,556.72/x
  3. Step 3: Cross multiply
    76,857.38x = 115,303.10 × 23,556.72
  4. Step 4: Simplify right side
    76,857.38x = 2,716,162,724.05
  5. Step 5: Solve for x
    x = 2,716,162,724.05/76,857.38
  6. Step 6: Final answer
    x = 35,340.30

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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.