Home / 54,885.51-75,743.49-31,011.68

Finding the Fourth Proportional to 54,885.51, 75,743.49 and 31,011.68

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Solution

The fourth proportional to 54,885.51, 75,743.49 and 31,011.68 is: 42,796.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,885.51 : 75,743.49 = 31,011.68 : x
  2. Step 2: Convert to fraction form
    54,885.51/75,743.49 = 31,011.68/x
  3. Step 3: Cross multiply
    54,885.51x = 75,743.49 × 31,011.68
  4. Step 4: Simplify right side
    54,885.51x = 2,348,932,495.25
  5. Step 5: Solve for x
    x = 2,348,932,495.25/54,885.51
  6. Step 6: Final answer
    x = 42,796.95

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Why These Related Problems?

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