Home / 74,918.22-112,393.76-28,171.09

Finding the Fourth Proportional to 74,918.22, 112,393.76 and 28,171.09

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Solution

The fourth proportional to 74,918.22, 112,393.76 and 28,171.09 is: 42,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.22 : 112,393.76 = 28,171.09 : x
  2. Step 2: Convert to fraction form
    74,918.22/112,393.76 = 28,171.09/x
  3. Step 3: Cross multiply
    74,918.22x = 112,393.76 × 28,171.09
  4. Step 4: Simplify right side
    74,918.22x = 3,166,254,728.40
  5. Step 5: Solve for x
    x = 3,166,254,728.40/74,918.22
  6. Step 6: Final answer
    x = 42,262.81

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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.