Home / 55,137.92-76,090.32-31,264.58

Finding the Fourth Proportional to 55,137.92, 76,090.32 and 31,264.58

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Solution

The fourth proportional to 55,137.92, 76,090.32 and 31,264.58 is: 43,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,137.92 : 76,090.32 = 31,264.58 : x
  2. Step 2: Convert to fraction form
    55,137.92/76,090.32 = 31,264.58/x
  3. Step 3: Cross multiply
    55,137.92x = 76,090.32 × 31,264.58
  4. Step 4: Simplify right side
    55,137.92x = 2,378,932,087.09
  5. Step 5: Solve for x
    x = 2,378,932,087.09/55,137.92
  6. Step 6: Final answer
    x = 43,145.12

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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.