Home / 69,899.09-104,831.04-19,979.45

Finding the Fourth Proportional to 69,899.09, 104,831.04 and 19,979.45

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Solution

The fourth proportional to 69,899.09, 104,831.04 and 19,979.45 is: 29,964.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,899.09 : 104,831.04 = 19,979.45 : x
  2. Step 2: Convert to fraction form
    69,899.09/104,831.04 = 19,979.45/x
  3. Step 3: Cross multiply
    69,899.09x = 104,831.04 × 19,979.45
  4. Step 4: Simplify right side
    69,899.09x = 2,094,466,466.01
  5. Step 5: Solve for x
    x = 2,094,466,466.01/69,899.09
  6. Step 6: Final answer
    x = 29,964.14

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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.