Home / 51,399.92-70,930.44-31,257.32

Finding the Fourth Proportional to 51,399.92, 70,930.44 and 31,257.32

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Solution

The fourth proportional to 51,399.92, 70,930.44 and 31,257.32 is: 43,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,399.92 : 70,930.44 = 31,257.32 : x
  2. Step 2: Convert to fraction form
    51,399.92/70,930.44 = 31,257.32/x
  3. Step 3: Cross multiply
    51,399.92x = 70,930.44 × 31,257.32
  4. Step 4: Simplify right side
    51,399.92x = 2,217,095,460.82
  5. Step 5: Solve for x
    x = 2,217,095,460.82/51,399.92
  6. Step 6: Final answer
    x = 43,134.22

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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.