Home / 55,204.28-82,783.70-21,919.80

Finding the Fourth Proportional to 55,204.28, 82,783.70 and 21,919.80

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Solution

The fourth proportional to 55,204.28, 82,783.70 and 21,919.80 is: 32,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,204.28 : 82,783.70 = 21,919.80 : x
  2. Step 2: Convert to fraction form
    55,204.28/82,783.70 = 21,919.80/x
  3. Step 3: Cross multiply
    55,204.28x = 82,783.70 × 21,919.80
  4. Step 4: Simplify right side
    55,204.28x = 1,814,602,147.26
  5. Step 5: Solve for x
    x = 1,814,602,147.26/55,204.28
  6. Step 6: Final answer
    x = 32,870.68

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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.