Home / 76,832.33-105,989.09-51,330.54

Finding the Fourth Proportional to 76,832.33, 105,989.09 and 51,330.54

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Solution

The fourth proportional to 76,832.33, 105,989.09 and 51,330.54 is: 70,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,832.33 : 105,989.09 = 51,330.54 : x
  2. Step 2: Convert to fraction form
    76,832.33/105,989.09 = 51,330.54/x
  3. Step 3: Cross multiply
    76,832.33x = 105,989.09 × 51,330.54
  4. Step 4: Simplify right side
    76,832.33x = 5,440,476,967.16
  5. Step 5: Solve for x
    x = 5,440,476,967.16/76,832.33
  6. Step 6: Final answer
    x = 70,809.74

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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.