Home / 76,729.75-105,839.67-44,877.31

Finding the Fourth Proportional to 76,729.75, 105,839.67 and 44,877.31

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Solution

The fourth proportional to 76,729.75, 105,839.67 and 44,877.31 is: 61,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,729.75 : 105,839.67 = 44,877.31 : x
  2. Step 2: Convert to fraction form
    76,729.75/105,839.67 = 44,877.31/x
  3. Step 3: Cross multiply
    76,729.75x = 105,839.67 × 44,877.31
  4. Step 4: Simplify right side
    76,729.75x = 4,749,799,680.89
  5. Step 5: Solve for x
    x = 4,749,799,680.89/76,729.75
  6. Step 6: Final answer
    x = 61,902.97

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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.