Home / 55,045.71-75,964.86-31,171.88

Finding the Fourth Proportional to 55,045.71, 75,964.86 and 31,171.88

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Solution

The fourth proportional to 55,045.71, 75,964.86 and 31,171.88 is: 43,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,045.71 : 75,964.86 = 31,171.88 : x
  2. Step 2: Convert to fraction form
    55,045.71/75,964.86 = 31,171.88/x
  3. Step 3: Cross multiply
    55,045.71x = 75,964.86 × 31,171.88
  4. Step 4: Simplify right side
    55,045.71x = 2,367,967,120.31
  5. Step 5: Solve for x
    x = 2,367,967,120.31/55,045.71
  6. Step 6: Final answer
    x = 43,018.20

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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.