Home / 49,731.90-74,549.93-31,912.31

Finding the Fourth Proportional to 49,731.90, 74,549.93 and 31,912.31

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Solution

The fourth proportional to 49,731.90, 74,549.93 and 31,912.31 is: 47,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,731.90 : 74,549.93 = 31,912.31 : x
  2. Step 2: Convert to fraction form
    49,731.90/74,549.93 = 31,912.31/x
  3. Step 3: Cross multiply
    49,731.90x = 74,549.93 × 31,912.31
  4. Step 4: Simplify right side
    49,731.90x = 2,379,059,944.33
  5. Step 5: Solve for x
    x = 2,379,059,944.33/49,731.90
  6. Step 6: Final answer
    x = 47,837.70

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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.