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Finding the Fourth Proportional to 61,351.70, 92,028.40 and 40,425.70

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Solution

The fourth proportional to 61,351.70, 92,028.40 and 40,425.70 is: 60,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,351.70 : 92,028.40 = 40,425.70 : x
  2. Step 2: Convert to fraction form
    61,351.70/92,028.40 = 40,425.70/x
  3. Step 3: Cross multiply
    61,351.70x = 92,028.40 × 40,425.70
  4. Step 4: Simplify right side
    61,351.70x = 3,720,312,489.88
  5. Step 5: Solve for x
    x = 3,720,312,489.88/61,351.70
  6. Step 6: Final answer
    x = 60,639.11

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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.