Home / 70,865.47-106,296.31-28,734.27

Finding the Fourth Proportional to 70,865.47, 106,296.31 and 28,734.27

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Solution

The fourth proportional to 70,865.47, 106,296.31 and 28,734.27 is: 43,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,865.47 : 106,296.31 = 28,734.27 : x
  2. Step 2: Convert to fraction form
    70,865.47/106,296.31 = 28,734.27/x
  3. Step 3: Cross multiply
    70,865.47x = 106,296.31 × 28,734.27
  4. Step 4: Simplify right side
    70,865.47x = 3,054,346,871.54
  5. Step 5: Solve for x
    x = 3,054,346,871.54/70,865.47
  6. Step 6: Final answer
    x = 43,100.64

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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.