Home / 55,165-76,129.32-30,016.12

Finding the Fourth Proportional to 55,165, 76,129.32 and 30,016.12

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Solution

The fourth proportional to 55,165, 76,129.32 and 30,016.12 is: 41,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,165 : 76,129.32 = 30,016.12 : x
  2. Step 2: Convert to fraction form
    55,165/76,129.32 = 30,016.12/x
  3. Step 3: Cross multiply
    55,165x = 76,129.32 × 30,016.12
  4. Step 4: Simplify right side
    55,165x = 2,285,106,804.64
  5. Step 5: Solve for x
    x = 2,285,106,804.64/55,165
  6. Step 6: Final answer
    x = 41,423.13

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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.