Home / 55,519.21-76,614.60-31,653.57

Finding the Fourth Proportional to 55,519.21, 76,614.60 and 31,653.57

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Solution

The fourth proportional to 55,519.21, 76,614.60 and 31,653.57 is: 43,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,519.21 : 76,614.60 = 31,653.57 : x
  2. Step 2: Convert to fraction form
    55,519.21/76,614.60 = 31,653.57/x
  3. Step 3: Cross multiply
    55,519.21x = 76,614.60 × 31,653.57
  4. Step 4: Simplify right side
    55,519.21x = 2,425,125,604.12
  5. Step 5: Solve for x
    x = 2,425,125,604.12/55,519.21
  6. Step 6: Final answer
    x = 43,680.84

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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.