Home / 48,309.36-66,628.44-39,911.28

Finding the Fourth Proportional to 48,309.36, 66,628.44 and 39,911.28

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Solution

The fourth proportional to 48,309.36, 66,628.44 and 39,911.28 is: 55,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,309.36 : 66,628.44 = 39,911.28 : x
  2. Step 2: Convert to fraction form
    48,309.36/66,628.44 = 39,911.28/x
  3. Step 3: Cross multiply
    48,309.36x = 66,628.44 × 39,911.28
  4. Step 4: Simplify right side
    48,309.36x = 2,659,226,324.80
  5. Step 5: Solve for x
    x = 2,659,226,324.80/48,309.36
  6. Step 6: Final answer
    x = 55,045.78

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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.