Home / 54,607.12-81,930.04-31,253.20

Finding the Fourth Proportional to 54,607.12, 81,930.04 and 31,253.20

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Solution

The fourth proportional to 54,607.12, 81,930.04 and 31,253.20 is: 46,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,607.12 : 81,930.04 = 31,253.20 : x
  2. Step 2: Convert to fraction form
    54,607.12/81,930.04 = 31,253.20/x
  3. Step 3: Cross multiply
    54,607.12x = 81,930.04 × 31,253.20
  4. Step 4: Simplify right side
    54,607.12x = 2,560,575,926.13
  5. Step 5: Solve for x
    x = 2,560,575,926.13/54,607.12
  6. Step 6: Final answer
    x = 46,890.88

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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.