Home / 83,512.32-125,281.44-28,104

Finding the Fourth Proportional to 83,512.32, 125,281.44 and 28,104

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Solution

The fourth proportional to 83,512.32, 125,281.44 and 28,104 is: 42,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,512.32 : 125,281.44 = 28,104 : x
  2. Step 2: Convert to fraction form
    83,512.32/125,281.44 = 28,104/x
  3. Step 3: Cross multiply
    83,512.32x = 125,281.44 × 28,104
  4. Step 4: Simplify right side
    83,512.32x = 3,520,909,589.76
  5. Step 5: Solve for x
    x = 3,520,909,589.76/83,512.32
  6. Step 6: Final answer
    x = 42,160.36

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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.