Home / 55,136.84-82,679.34-38,515.64

Finding the Fourth Proportional to 55,136.84, 82,679.34 and 38,515.64

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Solution

The fourth proportional to 55,136.84, 82,679.34 and 38,515.64 is: 57,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,136.84 : 82,679.34 = 38,515.64 : x
  2. Step 2: Convert to fraction form
    55,136.84/82,679.34 = 38,515.64/x
  3. Step 3: Cross multiply
    55,136.84x = 82,679.34 × 38,515.64
  4. Step 4: Simplify right side
    55,136.84x = 3,184,447,447.09
  5. Step 5: Solve for x
    x = 3,184,447,447.09/55,136.84
  6. Step 6: Final answer
    x = 57,755.35

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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.