Home / 76,828.85-115,201.51-34,659.54

Finding the Fourth Proportional to 76,828.85, 115,201.51 and 34,659.54

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Solution

The fourth proportional to 76,828.85, 115,201.51 and 34,659.54 is: 51,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,828.85 : 115,201.51 = 34,659.54 : x
  2. Step 2: Convert to fraction form
    76,828.85/115,201.51 = 34,659.54/x
  3. Step 3: Cross multiply
    76,828.85x = 115,201.51 × 34,659.54
  4. Step 4: Simplify right side
    76,828.85x = 3,992,831,631.91
  5. Step 5: Solve for x
    x = 3,992,831,631.91/76,828.85
  6. Step 6: Final answer
    x = 51,970.47

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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.