Home / 81,647.45-112,665.70-45,829.25

Finding the Fourth Proportional to 81,647.45, 112,665.70 and 45,829.25

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Solution

The fourth proportional to 81,647.45, 112,665.70 and 45,829.25 is: 63,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,647.45 : 112,665.70 = 45,829.25 : x
  2. Step 2: Convert to fraction form
    81,647.45/112,665.70 = 45,829.25/x
  3. Step 3: Cross multiply
    81,647.45x = 112,665.70 × 45,829.25
  4. Step 4: Simplify right side
    81,647.45x = 5,163,384,531.73
  5. Step 5: Solve for x
    x = 5,163,384,531.73/81,647.45
  6. Step 6: Final answer
    x = 63,240.00

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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.