Home / 45,412.16-68,105.28-19,112

Finding the Fourth Proportional to 45,412.16, 68,105.28 and 19,112

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Solution

The fourth proportional to 45,412.16, 68,105.28 and 19,112 is: 28,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,412.16 : 68,105.28 = 19,112 : x
  2. Step 2: Convert to fraction form
    45,412.16/68,105.28 = 19,112/x
  3. Step 3: Cross multiply
    45,412.16x = 68,105.28 × 19,112
  4. Step 4: Simplify right side
    45,412.16x = 1,301,628,111.36
  5. Step 5: Solve for x
    x = 1,301,628,111.36/45,412.16
  6. Step 6: Final answer
    x = 28,662.55

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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.