Home / 43,454.78-65,182.17-20,078.18

Finding the Fourth Proportional to 43,454.78, 65,182.17 and 20,078.18

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Solution

The fourth proportional to 43,454.78, 65,182.17 and 20,078.18 is: 30,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,454.78 : 65,182.17 = 20,078.18 : x
  2. Step 2: Convert to fraction form
    43,454.78/65,182.17 = 20,078.18/x
  3. Step 3: Cross multiply
    43,454.78x = 65,182.17 × 20,078.18
  4. Step 4: Simplify right side
    43,454.78x = 1,308,739,342.05
  5. Step 5: Solve for x
    x = 1,308,739,342.05/43,454.78
  6. Step 6: Final answer
    x = 30,117.27

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1.5x scale

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.