Home / 55,431.53-76,495.58-31,558.20

Finding the Fourth Proportional to 55,431.53, 76,495.58 and 31,558.20

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Solution

The fourth proportional to 55,431.53, 76,495.58 and 31,558.20 is: 43,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,431.53 : 76,495.58 = 31,558.20 : x
  2. Step 2: Convert to fraction form
    55,431.53/76,495.58 = 31,558.20/x
  3. Step 3: Cross multiply
    55,431.53x = 76,495.58 × 31,558.20
  4. Step 4: Simplify right side
    55,431.53x = 2,414,062,654.97
  5. Step 5: Solve for x
    x = 2,414,062,654.97/55,431.53
  6. Step 6: Final answer
    x = 43,550.36

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1.5x scale

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.