Home / 55,416.96-83,137.92-18,480

Finding the Fourth Proportional to 55,416.96, 83,137.92 and 18,480

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Solution

The fourth proportional to 55,416.96, 83,137.92 and 18,480 is: 27,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,416.96 : 83,137.92 = 18,480 : x
  2. Step 2: Convert to fraction form
    55,416.96/83,137.92 = 18,480/x
  3. Step 3: Cross multiply
    55,416.96x = 83,137.92 × 18,480
  4. Step 4: Simplify right side
    55,416.96x = 1,536,388,761.60
  5. Step 5: Solve for x
    x = 1,536,388,761.60/55,416.96
  6. Step 6: Final answer
    x = 27,724.16

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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.