Home / 55,448.20-83,172.30-18,512.20

Finding the Fourth Proportional to 55,448.20, 83,172.30 and 18,512.20

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Solution

The fourth proportional to 55,448.20, 83,172.30 and 18,512.20 is: 27,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,448.20 : 83,172.30 = 18,512.20 : x
  2. Step 2: Convert to fraction form
    55,448.20/83,172.30 = 18,512.20/x
  3. Step 3: Cross multiply
    55,448.20x = 83,172.30 × 18,512.20
  4. Step 4: Simplify right side
    55,448.20x = 1,539,702,252.06
  5. Step 5: Solve for x
    x = 1,539,702,252.06/55,448.20
  6. Step 6: Final answer
    x = 27,768.30

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1.5x scale

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.