Home / 76,551.09-114,840.41-31,547.39

Finding the Fourth Proportional to 76,551.09, 114,840.41 and 31,547.39

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Solution

The fourth proportional to 76,551.09, 114,840.41 and 31,547.39 is: 47,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,551.09 : 114,840.41 = 31,547.39 : x
  2. Step 2: Convert to fraction form
    76,551.09/114,840.41 = 31,547.39/x
  3. Step 3: Cross multiply
    76,551.09x = 114,840.41 × 31,547.39
  4. Step 4: Simplify right side
    76,551.09x = 3,622,914,470.09
  5. Step 5: Solve for x
    x = 3,622,914,470.09/76,551.09
  6. Step 6: Final answer
    x = 47,326.75

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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.