Home / 42,725.24-64,087.86-31,112.36

Finding the Fourth Proportional to 42,725.24, 64,087.86 and 31,112.36

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Solution

The fourth proportional to 42,725.24, 64,087.86 and 31,112.36 is: 46,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,725.24 : 64,087.86 = 31,112.36 : x
  2. Step 2: Convert to fraction form
    42,725.24/64,087.86 = 31,112.36/x
  3. Step 3: Cross multiply
    42,725.24x = 64,087.86 × 31,112.36
  4. Step 4: Simplify right side
    42,725.24x = 1,993,924,571.95
  5. Step 5: Solve for x
    x = 1,993,924,571.95/42,725.24
  6. Step 6: Final answer
    x = 46,668.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.