Home / 69,813.36-104,719.68-28,260

Finding the Fourth Proportional to 69,813.36, 104,719.68 and 28,260

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Solution

The fourth proportional to 69,813.36, 104,719.68 and 28,260 is: 42,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,813.36 : 104,719.68 = 28,260 : x
  2. Step 2: Convert to fraction form
    69,813.36/104,719.68 = 28,260/x
  3. Step 3: Cross multiply
    69,813.36x = 104,719.68 × 28,260
  4. Step 4: Simplify right side
    69,813.36x = 2,959,378,156.80
  5. Step 5: Solve for x
    x = 2,959,378,156.80/69,813.36
  6. Step 6: Final answer
    x = 42,389.85

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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.