Home / 76,826.90-115,213.69-26,905.89

Finding the Fourth Proportional to 76,826.90, 115,213.69 and 26,905.89

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Solution

The fourth proportional to 76,826.90, 115,213.69 and 26,905.89 is: 40,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,826.90 : 115,213.69 = 26,905.89 : x
  2. Step 2: Convert to fraction form
    76,826.90/115,213.69 = 26,905.89/x
  3. Step 3: Cross multiply
    76,826.90x = 115,213.69 × 26,905.89
  4. Step 4: Simplify right side
    76,826.90x = 3,099,926,903.27
  5. Step 5: Solve for x
    x = 3,099,926,903.27/76,826.90
  6. Step 6: Final answer
    x = 40,349.50

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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.