Home / 55,239.40-76,230.90-31,366.60

Finding the Fourth Proportional to 55,239.40, 76,230.90 and 31,366.60

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Solution

The fourth proportional to 55,239.40, 76,230.90 and 31,366.60 is: 43,286.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,239.40 : 76,230.90 = 31,366.60 : x
  2. Step 2: Convert to fraction form
    55,239.40/76,230.90 = 31,366.60/x
  3. Step 3: Cross multiply
    55,239.40x = 76,230.90 × 31,366.60
  4. Step 4: Simplify right side
    55,239.40x = 2,391,104,147.94
  5. Step 5: Solve for x
    x = 2,391,104,147.94/55,239.40
  6. Step 6: Final answer
    x = 43,286.21

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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.