Home / 74,821.11-112,172.19-43,195.40

Finding the Fourth Proportional to 74,821.11, 112,172.19 and 43,195.40

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Solution

The fourth proportional to 74,821.11, 112,172.19 and 43,195.40 is: 64,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,821.11 : 112,172.19 = 43,195.40 : x
  2. Step 2: Convert to fraction form
    74,821.11/112,172.19 = 43,195.40/x
  3. Step 3: Cross multiply
    74,821.11x = 112,172.19 × 43,195.40
  4. Step 4: Simplify right side
    74,821.11x = 4,845,322,615.93
  5. Step 5: Solve for x
    x = 4,845,322,615.93/74,821.11
  6. Step 6: Final answer
    x = 64,758.76

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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.