Home / 55,447.75-76,517.81-31,574.43

Finding the Fourth Proportional to 55,447.75, 76,517.81 and 31,574.43

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Solution

The fourth proportional to 55,447.75, 76,517.81 and 31,574.43 is: 43,572.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,447.75 : 76,517.81 = 31,574.43 : x
  2. Step 2: Convert to fraction form
    55,447.75/76,517.81 = 31,574.43/x
  3. Step 3: Cross multiply
    55,447.75x = 76,517.81 × 31,574.43
  4. Step 4: Simplify right side
    55,447.75x = 2,416,006,235.60
  5. Step 5: Solve for x
    x = 2,416,006,235.60/55,447.75
  6. Step 6: Final answer
    x = 43,572.66

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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.