Home / 57,056.96-78,739.20-31,907.84

Finding the Fourth Proportional to 57,056.96, 78,739.20 and 31,907.84

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Solution

The fourth proportional to 57,056.96, 78,739.20 and 31,907.84 is: 44,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.96 : 78,739.20 = 31,907.84 : x
  2. Step 2: Convert to fraction form
    57,056.96/78,739.20 = 31,907.84/x
  3. Step 3: Cross multiply
    57,056.96x = 78,739.20 × 31,907.84
  4. Step 4: Simplify right side
    57,056.96x = 2,512,397,795.33
  5. Step 5: Solve for x
    x = 2,512,397,795.33/57,056.96
  6. Step 6: Final answer
    x = 44,033.15

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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.