Home / 55,322.56-76,344.30-30,172.06

Finding the Fourth Proportional to 55,322.56, 76,344.30 and 30,172.06

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Solution

The fourth proportional to 55,322.56, 76,344.30 and 30,172.06 is: 41,636.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,322.56 : 76,344.30 = 30,172.06 : x
  2. Step 2: Convert to fraction form
    55,322.56/76,344.30 = 30,172.06/x
  3. Step 3: Cross multiply
    55,322.56x = 76,344.30 × 30,172.06
  4. Step 4: Simplify right side
    55,322.56x = 2,303,464,800.26
  5. Step 5: Solve for x
    x = 2,303,464,800.26/55,322.56
  6. Step 6: Final answer
    x = 41,636.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.