Home / 55,441.40-76,489.85-31,561.92

Finding the Fourth Proportional to 55,441.40, 76,489.85 and 31,561.92

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Solution

The fourth proportional to 55,441.40, 76,489.85 and 31,561.92 is: 43,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,441.40 : 76,489.85 = 31,561.92 : x
  2. Step 2: Convert to fraction form
    55,441.40/76,489.85 = 31,561.92/x
  3. Step 3: Cross multiply
    55,441.40x = 76,489.85 × 31,561.92
  4. Step 4: Simplify right side
    55,441.40x = 2,414,166,605.42
  5. Step 5: Solve for x
    x = 2,414,166,605.42/55,441.40
  6. Step 6: Final answer
    x = 43,544.48

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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.