Home / 51,738.15-71,396.58-31,628.68

Finding the Fourth Proportional to 51,738.15, 71,396.58 and 31,628.68

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Solution

The fourth proportional to 51,738.15, 71,396.58 and 31,628.68 is: 43,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,738.15 : 71,396.58 = 31,628.68 : x
  2. Step 2: Convert to fraction form
    51,738.15/71,396.58 = 31,628.68/x
  3. Step 3: Cross multiply
    51,738.15x = 71,396.58 × 31,628.68
  4. Step 4: Simplify right side
    51,738.15x = 2,258,179,581.91
  5. Step 5: Solve for x
    x = 2,258,179,581.91/51,738.15
  6. Step 6: Final answer
    x = 43,646.31

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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.