Home / 55,381.08-76,426.38-30,231.48

Finding the Fourth Proportional to 55,381.08, 76,426.38 and 30,231.48

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Solution

The fourth proportional to 55,381.08, 76,426.38 and 30,231.48 is: 41,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,381.08 : 76,426.38 = 30,231.48 : x
  2. Step 2: Convert to fraction form
    55,381.08/76,426.38 = 30,231.48/x
  3. Step 3: Cross multiply
    55,381.08x = 76,426.38 × 30,231.48
  4. Step 4: Simplify right side
    55,381.08x = 2,310,482,578.44
  5. Step 5: Solve for x
    x = 2,310,482,578.44/55,381.08
  6. Step 6: Final answer
    x = 41,719.71

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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.