Home / 81,625.36-112,636.82-45,808.45

Finding the Fourth Proportional to 81,625.36, 112,636.82 and 45,808.45

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Solution

The fourth proportional to 81,625.36, 112,636.82 and 45,808.45 is: 63,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,625.36 : 112,636.82 = 45,808.45 : x
  2. Step 2: Convert to fraction form
    81,625.36/112,636.82 = 45,808.45/x
  3. Step 3: Cross multiply
    81,625.36x = 112,636.82 × 45,808.45
  4. Step 4: Simplify right side
    81,625.36x = 5,159,718,474.80
  5. Step 5: Solve for x
    x = 5,159,718,474.80/81,625.36
  6. Step 6: Final answer
    x = 63,212.20

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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.