Home / 73,023.12-109,454.34-28,641.60

Finding the Fourth Proportional to 73,023.12, 109,454.34 and 28,641.60

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Solution

The fourth proportional to 73,023.12, 109,454.34 and 28,641.60 is: 42,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,023.12 : 109,454.34 = 28,641.60 : x
  2. Step 2: Convert to fraction form
    73,023.12/109,454.34 = 28,641.60/x
  3. Step 3: Cross multiply
    73,023.12x = 109,454.34 × 28,641.60
  4. Step 4: Simplify right side
    73,023.12x = 3,134,947,424.54
  5. Step 5: Solve for x
    x = 3,134,947,424.54/73,023.12
  6. Step 6: Final answer
    x = 42,930.89

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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.