Home / 55,131.97-82,621.34-28,784.15

Finding the Fourth Proportional to 55,131.97, 82,621.34 and 28,784.15

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Solution

The fourth proportional to 55,131.97, 82,621.34 and 28,784.15 is: 43,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,131.97 : 82,621.34 = 28,784.15 : x
  2. Step 2: Convert to fraction form
    55,131.97/82,621.34 = 28,784.15/x
  3. Step 3: Cross multiply
    55,131.97x = 82,621.34 × 28,784.15
  4. Step 4: Simplify right side
    55,131.97x = 2,378,184,899.84
  5. Step 5: Solve for x
    x = 2,378,184,899.84/55,131.97
  6. Step 6: Final answer
    x = 43,136.23

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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.