Home / 81,203.22-112,060.10-45,393.20

Finding the Fourth Proportional to 81,203.22, 112,060.10 and 45,393.20

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Solution

The fourth proportional to 81,203.22, 112,060.10 and 45,393.20 is: 62,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,203.22 : 112,060.10 = 45,393.20 : x
  2. Step 2: Convert to fraction form
    81,203.22/112,060.10 = 45,393.20/x
  3. Step 3: Cross multiply
    81,203.22x = 112,060.10 × 45,393.20
  4. Step 4: Simplify right side
    81,203.22x = 5,086,766,531.32
  5. Step 5: Solve for x
    x = 5,086,766,531.32/81,203.22
  6. Step 6: Final answer
    x = 62,642.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.