Home / 86,993.40-130,256.24-55,231.47

Finding the Fourth Proportional to 86,993.40, 130,256.24 and 55,231.47

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Solution

The fourth proportional to 86,993.40, 130,256.24 and 55,231.47 is: 82,698.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,993.40 : 130,256.24 = 55,231.47 : x
  2. Step 2: Convert to fraction form
    86,993.40/130,256.24 = 55,231.47/x
  3. Step 3: Cross multiply
    86,993.40x = 130,256.24 × 55,231.47
  4. Step 4: Simplify right side
    86,993.40x = 7,194,243,335.72
  5. Step 5: Solve for x
    x = 7,194,243,335.72/86,993.40
  6. Step 6: Final answer
    x = 82,698.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.