Home / 55,265.55-82,904.40-20,212.80

Finding the Fourth Proportional to 55,265.55, 82,904.40 and 20,212.80

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Solution

The fourth proportional to 55,265.55, 82,904.40 and 20,212.80 is: 30,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,265.55 : 82,904.40 = 20,212.80 : x
  2. Step 2: Convert to fraction form
    55,265.55/82,904.40 = 20,212.80/x
  3. Step 3: Cross multiply
    55,265.55x = 82,904.40 × 20,212.80
  4. Step 4: Simplify right side
    55,265.55x = 1,675,730,056.32
  5. Step 5: Solve for x
    x = 1,675,730,056.32/55,265.55
  6. Step 6: Final answer
    x = 30,321.42

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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.