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Finding the Fourth Proportional to 61,506.95, 84,893.40 and 40,273.88

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Solution

The fourth proportional to 61,506.95, 84,893.40 and 40,273.88 is: 55,586.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,506.95 : 84,893.40 = 40,273.88 : x
  2. Step 2: Convert to fraction form
    61,506.95/84,893.40 = 40,273.88/x
  3. Step 3: Cross multiply
    61,506.95x = 84,893.40 × 40,273.88
  4. Step 4: Simplify right side
    61,506.95x = 3,418,986,179.93
  5. Step 5: Solve for x
    x = 3,418,986,179.93/61,506.95
  6. Step 6: Final answer
    x = 55,586.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.