Home / 49,174.74-67,840.47-31,278.60

Finding the Fourth Proportional to 49,174.74, 67,840.47 and 31,278.60

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Solution

The fourth proportional to 49,174.74, 67,840.47 and 31,278.60 is: 43,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,174.74 : 67,840.47 = 31,278.60 : x
  2. Step 2: Convert to fraction form
    49,174.74/67,840.47 = 31,278.60/x
  3. Step 3: Cross multiply
    49,174.74x = 67,840.47 × 31,278.60
  4. Step 4: Simplify right side
    49,174.74x = 2,121,954,924.94
  5. Step 5: Solve for x
    x = 2,121,954,924.94/49,174.74
  6. Step 6: Final answer
    x = 43,151.32

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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.