Home / 81,626.41-112,635.80-45,820.36

Finding the Fourth Proportional to 81,626.41, 112,635.80 and 45,820.36

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Solution

The fourth proportional to 81,626.41, 112,635.80 and 45,820.36 is: 63,227.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,626.41 : 112,635.80 = 45,820.36 : x
  2. Step 2: Convert to fraction form
    81,626.41/112,635.80 = 45,820.36/x
  3. Step 3: Cross multiply
    81,626.41x = 112,635.80 × 45,820.36
  4. Step 4: Simplify right side
    81,626.41x = 5,161,012,112.61
  5. Step 5: Solve for x
    x = 5,161,012,112.61/81,626.41
  6. Step 6: Final answer
    x = 63,227.24

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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.