Home / 54,700.20-82,050.30-31,080.60

Finding the Fourth Proportional to 54,700.20, 82,050.30 and 31,080.60

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Solution

The fourth proportional to 54,700.20, 82,050.30 and 31,080.60 is: 46,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,700.20 : 82,050.30 = 31,080.60 : x
  2. Step 2: Convert to fraction form
    54,700.20/82,050.30 = 31,080.60/x
  3. Step 3: Cross multiply
    54,700.20x = 82,050.30 × 31,080.60
  4. Step 4: Simplify right side
    54,700.20x = 2,550,172,554.18
  5. Step 5: Solve for x
    x = 2,550,172,554.18/54,700.20
  6. Step 6: Final answer
    x = 46,620.90

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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.