Home / 57,961.62-86,955.93-18,515.70

Finding the Fourth Proportional to 57,961.62, 86,955.93 and 18,515.70

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Solution

The fourth proportional to 57,961.62, 86,955.93 and 18,515.70 is: 27,777.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,961.62 : 86,955.93 = 18,515.70 : x
  2. Step 2: Convert to fraction form
    57,961.62/86,955.93 = 18,515.70/x
  3. Step 3: Cross multiply
    57,961.62x = 86,955.93 × 18,515.70
  4. Step 4: Simplify right side
    57,961.62x = 1,610,049,913.10
  5. Step 5: Solve for x
    x = 1,610,049,913.10/57,961.62
  6. Step 6: Final answer
    x = 27,777.86

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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.