Home / 82,853.80-124,329.30-30,268.60

Finding the Fourth Proportional to 82,853.80, 124,329.30 and 30,268.60

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Solution

The fourth proportional to 82,853.80, 124,329.30 and 30,268.60 is: 45,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,853.80 : 124,329.30 = 30,268.60 : x
  2. Step 2: Convert to fraction form
    82,853.80/124,329.30 = 30,268.60/x
  3. Step 3: Cross multiply
    82,853.80x = 124,329.30 × 30,268.60
  4. Step 4: Simplify right side
    82,853.80x = 3,763,273,849.98
  5. Step 5: Solve for x
    x = 3,763,273,849.98/82,853.80
  6. Step 6: Final answer
    x = 45,420.65

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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.