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Finding the Fourth Proportional to 92,431.92, 127,555.44 and 49,990.32

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Solution

The fourth proportional to 92,431.92, 127,555.44 and 49,990.32 is: 68,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,431.92 : 127,555.44 = 49,990.32 : x
  2. Step 2: Convert to fraction form
    92,431.92/127,555.44 = 49,990.32/x
  3. Step 3: Cross multiply
    92,431.92x = 127,555.44 × 49,990.32
  4. Step 4: Simplify right side
    92,431.92x = 6,376,537,263.34
  5. Step 5: Solve for x
    x = 6,376,537,263.34/92,431.92
  6. Step 6: Final answer
    x = 68,986.31

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