Home / 55,523.28-76,623.30-30,372.78

Finding the Fourth Proportional to 55,523.28, 76,623.30 and 30,372.78

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Solution

The fourth proportional to 55,523.28, 76,623.30 and 30,372.78 is: 41,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,523.28 : 76,623.30 = 30,372.78 : x
  2. Step 2: Convert to fraction form
    55,523.28/76,623.30 = 30,372.78/x
  3. Step 3: Cross multiply
    55,523.28x = 76,623.30 × 30,372.78
  4. Step 4: Simplify right side
    55,523.28x = 2,327,262,633.77
  5. Step 5: Solve for x
    x = 2,327,262,633.77/55,523.28
  6. Step 6: Final answer
    x = 41,915.08

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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.