Home / 61,961.50-92,942.28-20,411.74

Finding the Fourth Proportional to 61,961.50, 92,942.28 and 20,411.74

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Solution

The fourth proportional to 61,961.50, 92,942.28 and 20,411.74 is: 30,617.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,961.50 : 92,942.28 = 20,411.74 : x
  2. Step 2: Convert to fraction form
    61,961.50/92,942.28 = 20,411.74/x
  3. Step 3: Cross multiply
    61,961.50x = 92,942.28 × 20,411.74
  4. Step 4: Simplify right side
    61,961.50x = 1,897,113,654.37
  5. Step 5: Solve for x
    x = 1,897,113,654.37/61,961.50
  6. Step 6: Final answer
    x = 30,617.62

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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.