Home / 56,719.31-85,072.88-17,276.76

Finding the Fourth Proportional to 56,719.31, 85,072.88 and 17,276.76

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Solution

The fourth proportional to 56,719.31, 85,072.88 and 17,276.76 is: 25,913.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,719.31 : 85,072.88 = 17,276.76 : x
  2. Step 2: Convert to fraction form
    56,719.31/85,072.88 = 17,276.76/x
  3. Step 3: Cross multiply
    56,719.31x = 85,072.88 × 17,276.76
  4. Step 4: Simplify right side
    56,719.31x = 1,469,783,773.46
  5. Step 5: Solve for x
    x = 1,469,783,773.46/56,719.31
  6. Step 6: Final answer
    x = 25,913.29

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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.