Home / 81,360.03-122,058.44-43,919.30

Finding the Fourth Proportional to 81,360.03, 122,058.44 and 43,919.30

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Solution

The fourth proportional to 81,360.03, 122,058.44 and 43,919.30 is: 65,888.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,360.03 : 122,058.44 = 43,919.30 : x
  2. Step 2: Convert to fraction form
    81,360.03/122,058.44 = 43,919.30/x
  3. Step 3: Cross multiply
    81,360.03x = 122,058.44 × 43,919.30
  4. Step 4: Simplify right side
    81,360.03x = 5,360,721,054.61
  5. Step 5: Solve for x
    x = 5,360,721,054.61/81,360.03
  6. Step 6: Final answer
    x = 65,888.88

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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.