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Finding the Fourth Proportional to 76,676.22, 114,886.76 and 26,728.79

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Solution

The fourth proportional to 76,676.22, 114,886.76 and 26,728.79 is: 40,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,676.22 : 114,886.76 = 26,728.79 : x
  2. Step 2: Convert to fraction form
    76,676.22/114,886.76 = 26,728.79/x
  3. Step 3: Cross multiply
    76,676.22x = 114,886.76 × 26,728.79
  4. Step 4: Simplify right side
    76,676.22x = 3,070,783,373.74
  5. Step 5: Solve for x
    x = 3,070,783,373.74/76,676.22
  6. Step 6: Final answer
    x = 40,048.71

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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.