Home / 53,990.32-74,490.10-31,321.44

Finding the Fourth Proportional to 53,990.32, 74,490.10 and 31,321.44

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Solution

The fourth proportional to 53,990.32, 74,490.10 and 31,321.44 is: 43,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,990.32 : 74,490.10 = 31,321.44 : x
  2. Step 2: Convert to fraction form
    53,990.32/74,490.10 = 31,321.44/x
  3. Step 3: Cross multiply
    53,990.32x = 74,490.10 × 31,321.44
  4. Step 4: Simplify right side
    53,990.32x = 2,333,137,197.74
  5. Step 5: Solve for x
    x = 2,333,137,197.74/53,990.32
  6. Step 6: Final answer
    x = 43,213.99

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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.