Home / 61,821.70-92,664.90-31,837.75

Finding the Fourth Proportional to 61,821.70, 92,664.90 and 31,837.75

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Solution

The fourth proportional to 61,821.70, 92,664.90 and 31,837.75 is: 47,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,821.70 : 92,664.90 = 31,837.75 : x
  2. Step 2: Convert to fraction form
    61,821.70/92,664.90 = 31,837.75/x
  3. Step 3: Cross multiply
    61,821.70x = 92,664.90 × 31,837.75
  4. Step 4: Simplify right side
    61,821.70x = 2,950,241,916.41
  5. Step 5: Solve for x
    x = 2,950,241,916.41/61,821.70
  6. Step 6: Final answer
    x = 47,721.79

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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.