Home / 49,679.36-68,564.48-30,822.56

Finding the Fourth Proportional to 49,679.36, 68,564.48 and 30,822.56

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Solution

The fourth proportional to 49,679.36, 68,564.48 and 30,822.56 is: 42,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,679.36 : 68,564.48 = 30,822.56 : x
  2. Step 2: Convert to fraction form
    49,679.36/68,564.48 = 30,822.56/x
  3. Step 3: Cross multiply
    49,679.36x = 68,564.48 × 30,822.56
  4. Step 4: Simplify right side
    49,679.36x = 2,113,332,798.67
  5. Step 5: Solve for x
    x = 2,113,332,798.67/49,679.36
  6. Step 6: Final answer
    x = 42,539.45

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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.