Home / 55,422.20-83,133.30-22,147.40

Finding the Fourth Proportional to 55,422.20, 83,133.30 and 22,147.40

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Solution

The fourth proportional to 55,422.20, 83,133.30 and 22,147.40 is: 33,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,422.20 : 83,133.30 = 22,147.40 : x
  2. Step 2: Convert to fraction form
    55,422.20/83,133.30 = 22,147.40/x
  3. Step 3: Cross multiply
    55,422.20x = 83,133.30 × 22,147.40
  4. Step 4: Simplify right side
    55,422.20x = 1,841,186,448.42
  5. Step 5: Solve for x
    x = 1,841,186,448.42/55,422.20
  6. Step 6: Final answer
    x = 33,221.10

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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.