Home / 55,448.08-83,205.06-20,412.34

Finding the Fourth Proportional to 55,448.08, 83,205.06 and 20,412.34

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Solution

The fourth proportional to 55,448.08, 83,205.06 and 20,412.34 is: 30,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,448.08 : 83,205.06 = 20,412.34 : x
  2. Step 2: Convert to fraction form
    55,448.08/83,205.06 = 20,412.34/x
  3. Step 3: Cross multiply
    55,448.08x = 83,205.06 × 20,412.34
  4. Step 4: Simplify right side
    55,448.08x = 1,698,409,974.44
  5. Step 5: Solve for x
    x = 1,698,409,974.44/55,448.08
  6. Step 6: Final answer
    x = 30,630.64

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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.