Home / 211,823.10-317,734.49-54,051.57

Finding the Fourth Proportional to 211,823.10, 317,734.49 and 54,051.57

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Solution

The fourth proportional to 211,823.10, 317,734.49 and 54,051.57 is: 81,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,823.10 : 317,734.49 = 54,051.57 : x
  2. Step 2: Convert to fraction form
    211,823.10/317,734.49 = 54,051.57/x
  3. Step 3: Cross multiply
    211,823.10x = 317,734.49 × 54,051.57
  4. Step 4: Simplify right side
    211,823.10x = 17,174,048,162.78
  5. Step 5: Solve for x
    x = 17,174,048,162.78/211,823.10
  6. Step 6: Final answer
    x = 81,077.31

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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.