Home / 55,381.56-76,426.36-30,231.06

Finding the Fourth Proportional to 55,381.56, 76,426.36 and 30,231.06

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Solution

The fourth proportional to 55,381.56, 76,426.36 and 30,231.06 is: 41,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,381.56 : 76,426.36 = 30,231.06 : x
  2. Step 2: Convert to fraction form
    55,381.56/76,426.36 = 30,231.06/x
  3. Step 3: Cross multiply
    55,381.56x = 76,426.36 × 30,231.06
  4. Step 4: Simplify right side
    55,381.56x = 2,310,449,874.74
  5. Step 5: Solve for x
    x = 2,310,449,874.74/55,381.56
  6. Step 6: Final answer
    x = 41,718.76

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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.