Home / 49,927.80-68,911.92-28,719.36

Finding the Fourth Proportional to 49,927.80, 68,911.92 and 28,719.36

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Solution

The fourth proportional to 49,927.80, 68,911.92 and 28,719.36 is: 39,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,927.80 : 68,911.92 = 28,719.36 : x
  2. Step 2: Convert to fraction form
    49,927.80/68,911.92 = 28,719.36/x
  3. Step 3: Cross multiply
    49,927.80x = 68,911.92 × 28,719.36
  4. Step 4: Simplify right side
    49,927.80x = 1,979,106,238.77
  5. Step 5: Solve for x
    x = 1,979,106,238.77/49,927.80
  6. Step 6: Final answer
    x = 39,639.36

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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.