Home / 76,976.48-115,566.24-76,090.88

Finding the Fourth Proportional to 76,976.48, 115,566.24 and 76,090.88

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Solution

The fourth proportional to 76,976.48, 115,566.24 and 76,090.88 is: 114,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,976.48 : 115,566.24 = 76,090.88 : x
  2. Step 2: Convert to fraction form
    76,976.48/115,566.24 = 76,090.88/x
  3. Step 3: Cross multiply
    76,976.48x = 115,566.24 × 76,090.88
  4. Step 4: Simplify right side
    76,976.48x = 8,793,536,899.89
  5. Step 5: Solve for x
    x = 8,793,536,899.89/76,976.48
  6. Step 6: Final answer
    x = 114,236.67

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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.