Home / 81,209.93-121,814.79-22,054.28

Finding the Fourth Proportional to 81,209.93, 121,814.79 and 22,054.28

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Solution

The fourth proportional to 81,209.93, 121,814.79 and 22,054.28 is: 33,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,209.93 : 121,814.79 = 22,054.28 : x
  2. Step 2: Convert to fraction form
    81,209.93/121,814.79 = 22,054.28/x
  3. Step 3: Cross multiply
    81,209.93x = 121,814.79 × 22,054.28
  4. Step 4: Simplify right side
    81,209.93x = 2,686,537,486.80
  5. Step 5: Solve for x
    x = 2,686,537,486.80/81,209.93
  6. Step 6: Final answer
    x = 33,081.39

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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.