Home / 83,406.47-125,122.48-28,015.43

Finding the Fourth Proportional to 83,406.47, 125,122.48 and 28,015.43

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Solution

The fourth proportional to 83,406.47, 125,122.48 and 28,015.43 is: 42,027.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406.47 : 125,122.48 = 28,015.43 : x
  2. Step 2: Convert to fraction form
    83,406.47/125,122.48 = 28,015.43/x
  3. Step 3: Cross multiply
    83,406.47x = 125,122.48 × 28,015.43
  4. Step 4: Simplify right side
    83,406.47x = 3,505,359,384.22
  5. Step 5: Solve for x
    x = 3,505,359,384.22/83,406.47
  6. Step 6: Final answer
    x = 42,027.43

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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.