Home / 81,257.40-121,888.62-22,094.39

Finding the Fourth Proportional to 81,257.40, 121,888.62 and 22,094.39

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Solution

The fourth proportional to 81,257.40, 121,888.62 and 22,094.39 is: 33,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,257.40 : 121,888.62 = 22,094.39 : x
  2. Step 2: Convert to fraction form
    81,257.40/121,888.62 = 22,094.39/x
  3. Step 3: Cross multiply
    81,257.40x = 121,888.62 × 22,094.39
  4. Step 4: Simplify right side
    81,257.40x = 2,693,054,097.40
  5. Step 5: Solve for x
    x = 2,693,054,097.40/81,257.40
  6. Step 6: Final answer
    x = 33,142.26

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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.