Home / 51,078.60-70,487.12-28,416.44

Finding the Fourth Proportional to 51,078.60, 70,487.12 and 28,416.44

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Solution

The fourth proportional to 51,078.60, 70,487.12 and 28,416.44 is: 39,213.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,078.60 : 70,487.12 = 28,416.44 : x
  2. Step 2: Convert to fraction form
    51,078.60/70,487.12 = 28,416.44/x
  3. Step 3: Cross multiply
    51,078.60x = 70,487.12 × 28,416.44
  4. Step 4: Simplify right side
    51,078.60x = 2,002,993,016.25
  5. Step 5: Solve for x
    x = 2,002,993,016.25/51,078.60
  6. Step 6: Final answer
    x = 39,213.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.