Home / 86,970.40-130,424.78-41,372.73

Finding the Fourth Proportional to 86,970.40, 130,424.78 and 41,372.73

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Solution

The fourth proportional to 86,970.40, 130,424.78 and 41,372.73 is: 62,044.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,970.40 : 130,424.78 = 41,372.73 : x
  2. Step 2: Convert to fraction form
    86,970.40/130,424.78 = 41,372.73/x
  3. Step 3: Cross multiply
    86,970.40x = 130,424.78 × 41,372.73
  4. Step 4: Simplify right side
    86,970.40x = 5,396,029,311.68
  5. Step 5: Solve for x
    x = 5,396,029,311.68/86,970.40
  6. Step 6: Final answer
    x = 62,044.44

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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.