Home / 211,847.12-317,770.40-54,075.60

Finding the Fourth Proportional to 211,847.12, 317,770.40 and 54,075.60

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Solution

The fourth proportional to 211,847.12, 317,770.40 and 54,075.60 is: 81,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,847.12 : 317,770.40 = 54,075.60 : x
  2. Step 2: Convert to fraction form
    211,847.12/317,770.40 = 54,075.60/x
  3. Step 3: Cross multiply
    211,847.12x = 317,770.40 × 54,075.60
  4. Step 4: Simplify right side
    211,847.12x = 17,183,625,042.24
  5. Step 5: Solve for x
    x = 17,183,625,042.24/211,847.12
  6. Step 6: Final answer
    x = 81,113.33

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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.