Home / 74,949.88-112,422.12-18,790.45

Finding the Fourth Proportional to 74,949.88, 112,422.12 and 18,790.45

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Solution

The fourth proportional to 74,949.88, 112,422.12 and 18,790.45 is: 28,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,949.88 : 112,422.12 = 18,790.45 : x
  2. Step 2: Convert to fraction form
    74,949.88/112,422.12 = 18,790.45/x
  3. Step 3: Cross multiply
    74,949.88x = 112,422.12 × 18,790.45
  4. Step 4: Simplify right side
    74,949.88x = 2,112,462,224.75
  5. Step 5: Solve for x
    x = 2,112,462,224.75/74,949.88
  6. Step 6: Final answer
    x = 28,185.00

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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.