Home / 211,845.54-317,779.25-54,075.36

Finding the Fourth Proportional to 211,845.54, 317,779.25 and 54,075.36

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Solution

The fourth proportional to 211,845.54, 317,779.25 and 54,075.36 is: 81,115.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,845.54 : 317,779.25 = 54,075.36 : x
  2. Step 2: Convert to fraction form
    211,845.54/317,779.25 = 54,075.36/x
  3. Step 3: Cross multiply
    211,845.54x = 317,779.25 × 54,075.36
  4. Step 4: Simplify right side
    211,845.54x = 17,184,027,073.90
  5. Step 5: Solve for x
    x = 17,184,027,073.90/211,845.54
  6. Step 6: Final answer
    x = 81,115.83

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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.