Home / 51,234.43-70,709.99-31,090.15

Finding the Fourth Proportional to 51,234.43, 70,709.99 and 31,090.15

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Solution

The fourth proportional to 51,234.43, 70,709.99 and 31,090.15 is: 42,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,234.43 : 70,709.99 = 31,090.15 : x
  2. Step 2: Convert to fraction form
    51,234.43/70,709.99 = 31,090.15/x
  3. Step 3: Cross multiply
    51,234.43x = 70,709.99 × 31,090.15
  4. Step 4: Simplify right side
    51,234.43x = 2,198,383,979.96
  5. Step 5: Solve for x
    x = 2,198,383,979.96/51,234.43
  6. Step 6: Final answer
    x = 42,908.34

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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.