Home / 55,169.12-76,134.96-30,020.32

Finding the Fourth Proportional to 55,169.12, 76,134.96 and 30,020.32

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Solution

The fourth proportional to 55,169.12, 76,134.96 and 30,020.32 is: 41,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,169.12 : 76,134.96 = 30,020.32 : x
  2. Step 2: Convert to fraction form
    55,169.12/76,134.96 = 30,020.32/x
  3. Step 3: Cross multiply
    55,169.12x = 76,134.96 × 30,020.32
  4. Step 4: Simplify right side
    55,169.12x = 2,285,595,862.39
  5. Step 5: Solve for x
    x = 2,285,595,862.39/55,169.12
  6. Step 6: Final answer
    x = 41,428.90

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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.