Home / 51,105.32-70,525.92-28,137.72

Finding the Fourth Proportional to 51,105.32, 70,525.92 and 28,137.72

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Solution

The fourth proportional to 51,105.32, 70,525.92 and 28,137.72 is: 38,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,105.32 : 70,525.92 = 28,137.72 : x
  2. Step 2: Convert to fraction form
    51,105.32/70,525.92 = 28,137.72/x
  3. Step 3: Cross multiply
    51,105.32x = 70,525.92 × 28,137.72
  4. Step 4: Simplify right side
    51,105.32x = 1,984,438,589.70
  5. Step 5: Solve for x
    x = 1,984,438,589.70/51,105.32
  6. Step 6: Final answer
    x = 38,830.37

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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.