Home / 57,078.55-78,766.62-31,583.38

Finding the Fourth Proportional to 57,078.55, 78,766.62 and 31,583.38

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Solution

The fourth proportional to 57,078.55, 78,766.62 and 31,583.38 is: 43,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,078.55 : 78,766.62 = 31,583.38 : x
  2. Step 2: Convert to fraction form
    57,078.55/78,766.62 = 31,583.38/x
  3. Step 3: Cross multiply
    57,078.55x = 78,766.62 × 31,583.38
  4. Step 4: Simplify right side
    57,078.55x = 2,487,716,090.78
  5. Step 5: Solve for x
    x = 2,487,716,090.78/57,078.55
  6. Step 6: Final answer
    x = 43,584.08

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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.