Home / 57,054.20-78,728.74-31,556.52

Finding the Fourth Proportional to 57,054.20, 78,728.74 and 31,556.52

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Solution

The fourth proportional to 57,054.20, 78,728.74 and 31,556.52 is: 43,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,054.20 : 78,728.74 = 31,556.52 : x
  2. Step 2: Convert to fraction form
    57,054.20/78,728.74 = 31,556.52/x
  3. Step 3: Cross multiply
    57,054.20x = 78,728.74 × 31,556.52
  4. Step 4: Simplify right side
    57,054.20x = 2,484,404,506.96
  5. Step 5: Solve for x
    x = 2,484,404,506.96/57,054.20
  6. Step 6: Final answer
    x = 43,544.64

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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.