Home / 55,165.39-76,129.94-31,293.07

Finding the Fourth Proportional to 55,165.39, 76,129.94 and 31,293.07

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Solution

The fourth proportional to 55,165.39, 76,129.94 and 31,293.07 is: 43,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,165.39 : 76,129.94 = 31,293.07 : x
  2. Step 2: Convert to fraction form
    55,165.39/76,129.94 = 31,293.07/x
  3. Step 3: Cross multiply
    55,165.39x = 76,129.94 × 31,293.07
  4. Step 4: Simplify right side
    55,165.39x = 2,382,339,004.40
  5. Step 5: Solve for x
    x = 2,382,339,004.40/55,165.39
  6. Step 6: Final answer
    x = 43,185.40

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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.