Home / 55,179.09-76,141.88-30,974.51

Finding the Fourth Proportional to 55,179.09, 76,141.88 and 30,974.51

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Solution

The fourth proportional to 55,179.09, 76,141.88 and 30,974.51 is: 42,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,179.09 : 76,141.88 = 30,974.51 : x
  2. Step 2: Convert to fraction form
    55,179.09/76,141.88 = 30,974.51/x
  3. Step 3: Cross multiply
    55,179.09x = 76,141.88 × 30,974.51
  4. Step 4: Simplify right side
    55,179.09x = 2,358,457,268.61
  5. Step 5: Solve for x
    x = 2,358,457,268.61/55,179.09
  6. Step 6: Final answer
    x = 42,741.87

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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.