Home / 211,852.93-317,779.28-54,081.32

Finding the Fourth Proportional to 211,852.93, 317,779.28 and 54,081.32

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Solution

The fourth proportional to 211,852.93, 317,779.28 and 54,081.32 is: 81,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,852.93 : 317,779.28 = 54,081.32 : x
  2. Step 2: Convert to fraction form
    211,852.93/317,779.28 = 54,081.32/x
  3. Step 3: Cross multiply
    211,852.93x = 317,779.28 × 54,081.32
  4. Step 4: Simplify right side
    211,852.93x = 17,185,922,660.64
  5. Step 5: Solve for x
    x = 17,185,922,660.64/211,852.93
  6. Step 6: Final answer
    x = 81,121.95

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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.