Home / 76,738.15-105,914.99-51,573.07

Finding the Fourth Proportional to 76,738.15, 105,914.99 and 51,573.07

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Solution

The fourth proportional to 76,738.15, 105,914.99 and 51,573.07 is: 71,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,738.15 : 105,914.99 = 51,573.07 : x
  2. Step 2: Convert to fraction form
    76,738.15/105,914.99 = 51,573.07/x
  3. Step 3: Cross multiply
    76,738.15x = 105,914.99 × 51,573.07
  4. Step 4: Simplify right side
    76,738.15x = 5,462,361,193.32
  5. Step 5: Solve for x
    x = 5,462,361,193.32/76,738.15
  6. Step 6: Final answer
    x = 71,181.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.