Home / 81,231.03-121,848.22-25,071.18

Finding the Fourth Proportional to 81,231.03, 121,848.22 and 25,071.18

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Solution

The fourth proportional to 81,231.03, 121,848.22 and 25,071.18 is: 37,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,231.03 : 121,848.22 = 25,071.18 : x
  2. Step 2: Convert to fraction form
    81,231.03/121,848.22 = 25,071.18/x
  3. Step 3: Cross multiply
    81,231.03x = 121,848.22 × 25,071.18
  4. Step 4: Simplify right side
    81,231.03x = 3,054,877,921.70
  5. Step 5: Solve for x
    x = 3,054,877,921.70/81,231.03
  6. Step 6: Final answer
    x = 37,607.28

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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.