Home / 36,078.40-54,117.60-9,786.40

Finding the Fourth Proportional to 36,078.40, 54,117.60 and 9,786.40

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Solution

The fourth proportional to 36,078.40, 54,117.60 and 9,786.40 is: 14,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,078.40 : 54,117.60 = 9,786.40 : x
  2. Step 2: Convert to fraction form
    36,078.40/54,117.60 = 9,786.40/x
  3. Step 3: Cross multiply
    36,078.40x = 54,117.60 × 9,786.40
  4. Step 4: Simplify right side
    36,078.40x = 529,616,480.64
  5. Step 5: Solve for x
    x = 529,616,480.64/36,078.40
  6. Step 6: Final answer
    x = 14,679.60

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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.