Home / 51,203.21-70,660.78-28,543.64

Finding the Fourth Proportional to 51,203.21, 70,660.78 and 28,543.64

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Solution

The fourth proportional to 51,203.21, 70,660.78 and 28,543.64 is: 39,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,203.21 : 70,660.78 = 28,543.64 : x
  2. Step 2: Convert to fraction form
    51,203.21/70,660.78 = 28,543.64/x
  3. Step 3: Cross multiply
    51,203.21x = 70,660.78 × 28,543.64
  4. Step 4: Simplify right side
    51,203.21x = 2,016,915,866.44
  5. Step 5: Solve for x
    x = 2,016,915,866.44/51,203.21
  6. Step 6: Final answer
    x = 39,390.42

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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.