Home / 45,147.06-67,784.31-28,452.96

Finding the Fourth Proportional to 45,147.06, 67,784.31 and 28,452.96

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Solution

The fourth proportional to 45,147.06, 67,784.31 and 28,452.96 is: 42,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,147.06 : 67,784.31 = 28,452.96 : x
  2. Step 2: Convert to fraction form
    45,147.06/67,784.31 = 28,452.96/x
  3. Step 3: Cross multiply
    45,147.06x = 67,784.31 × 28,452.96
  4. Step 4: Simplify right side
    45,147.06x = 1,928,664,261.06
  5. Step 5: Solve for x
    x = 1,928,664,261.06/45,147.06
  6. Step 6: Final answer
    x = 42,719.60

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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.