Home / 45,827.73-68,702.40-20,858.87

Finding the Fourth Proportional to 45,827.73, 68,702.40 and 20,858.87

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Solution

The fourth proportional to 45,827.73, 68,702.40 and 20,858.87 is: 31,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,827.73 : 68,702.40 = 20,858.87 : x
  2. Step 2: Convert to fraction form
    45,827.73/68,702.40 = 20,858.87/x
  3. Step 3: Cross multiply
    45,827.73x = 68,702.40 × 20,858.87
  4. Step 4: Simplify right side
    45,827.73x = 1,433,054,086.78
  5. Step 5: Solve for x
    x = 1,433,054,086.78/45,827.73
  6. Step 6: Final answer
    x = 31,270.46

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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.