Home / 69,855.74-104,784.57-19,935.81

Finding the Fourth Proportional to 69,855.74, 104,784.57 and 19,935.81

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Solution

The fourth proportional to 69,855.74, 104,784.57 and 19,935.81 is: 29,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,855.74 : 104,784.57 = 19,935.81 : x
  2. Step 2: Convert to fraction form
    69,855.74/104,784.57 = 19,935.81/x
  3. Step 3: Cross multiply
    69,855.74x = 104,784.57 × 19,935.81
  4. Step 4: Simplify right side
    69,855.74x = 2,088,965,278.45
  5. Step 5: Solve for x
    x = 2,088,965,278.45/69,855.74
  6. Step 6: Final answer
    x = 29,903.99

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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.