Home / 55,271.04-82,845-21,982.20

Finding the Fourth Proportional to 55,271.04, 82,845 and 21,982.20

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Solution

The fourth proportional to 55,271.04, 82,845 and 21,982.20 is: 32,948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,271.04 : 82,845 = 21,982.20 : x
  2. Step 2: Convert to fraction form
    55,271.04/82,845 = 21,982.20/x
  3. Step 3: Cross multiply
    55,271.04x = 82,845 × 21,982.20
  4. Step 4: Simplify right side
    55,271.04x = 1,821,115,359
  5. Step 5: Solve for x
    x = 1,821,115,359/55,271.04
  6. Step 6: Final answer
    x = 32,948.82

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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.