Home / 70,949.28-106,365.60-28,259.04

Finding the Fourth Proportional to 70,949.28, 106,365.60 and 28,259.04

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Solution

The fourth proportional to 70,949.28, 106,365.60 and 28,259.04 is: 42,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,949.28 : 106,365.60 = 28,259.04 : x
  2. Step 2: Convert to fraction form
    70,949.28/106,365.60 = 28,259.04/x
  3. Step 3: Cross multiply
    70,949.28x = 106,365.60 × 28,259.04
  4. Step 4: Simplify right side
    70,949.28x = 3,005,789,745.02
  5. Step 5: Solve for x
    x = 3,005,789,745.02/70,949.28
  6. Step 6: Final answer
    x = 42,365.33

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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.