Home / 55,647.32-83,412.66-20,564.60

Finding the Fourth Proportional to 55,647.32, 83,412.66 and 20,564.60

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Solution

The fourth proportional to 55,647.32, 83,412.66 and 20,564.60 is: 30,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,647.32 : 83,412.66 = 20,564.60 : x
  2. Step 2: Convert to fraction form
    55,647.32/83,412.66 = 20,564.60/x
  3. Step 3: Cross multiply
    55,647.32x = 83,412.66 × 20,564.60
  4. Step 4: Simplify right side
    55,647.32x = 1,715,347,987.84
  5. Step 5: Solve for x
    x = 1,715,347,987.84/55,647.32
  6. Step 6: Final answer
    x = 30,825.35

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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.