Home / 74,763.23-112,116.90-30,375.03

Finding the Fourth Proportional to 74,763.23, 112,116.90 and 30,375.03

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Solution

The fourth proportional to 74,763.23, 112,116.90 and 30,375.03 is: 45,551.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,763.23 : 112,116.90 = 30,375.03 : x
  2. Step 2: Convert to fraction form
    74,763.23/112,116.90 = 30,375.03/x
  3. Step 3: Cross multiply
    74,763.23x = 112,116.90 × 30,375.03
  4. Step 4: Simplify right side
    74,763.23x = 3,405,554,201.01
  5. Step 5: Solve for x
    x = 3,405,554,201.01/74,763.23
  6. Step 6: Final answer
    x = 45,551.19

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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.