Home / 74,918.60-112,394.31-28,171.48

Finding the Fourth Proportional to 74,918.60, 112,394.31 and 28,171.48

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Solution

The fourth proportional to 74,918.60, 112,394.31 and 28,171.48 is: 42,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.60 : 112,394.31 = 28,171.48 : x
  2. Step 2: Convert to fraction form
    74,918.60/112,394.31 = 28,171.48/x
  3. Step 3: Cross multiply
    74,918.60x = 112,394.31 × 28,171.48
  4. Step 4: Simplify right side
    74,918.60x = 3,166,313,494.31
  5. Step 5: Solve for x
    x = 3,166,313,494.31/74,918.60
  6. Step 6: Final answer
    x = 42,263.38

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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.