Home / 57,222.75-78,968.35-31,730.19

Finding the Fourth Proportional to 57,222.75, 78,968.35 and 31,730.19

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Solution

The fourth proportional to 57,222.75, 78,968.35 and 31,730.19 is: 43,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,222.75 : 78,968.35 = 31,730.19 : x
  2. Step 2: Convert to fraction form
    57,222.75/78,968.35 = 31,730.19/x
  3. Step 3: Cross multiply
    57,222.75x = 78,968.35 × 31,730.19
  4. Step 4: Simplify right side
    57,222.75x = 2,505,680,749.49
  5. Step 5: Solve for x
    x = 2,505,680,749.49/57,222.75
  6. Step 6: Final answer
    x = 43,788.19

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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.