Home / 54,628.80-81,885.60-31,204.80

Finding the Fourth Proportional to 54,628.80, 81,885.60 and 31,204.80

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Solution

The fourth proportional to 54,628.80, 81,885.60 and 31,204.80 is: 46,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,628.80 : 81,885.60 = 31,204.80 : x
  2. Step 2: Convert to fraction form
    54,628.80/81,885.60 = 31,204.80/x
  3. Step 3: Cross multiply
    54,628.80x = 81,885.60 × 31,204.80
  4. Step 4: Simplify right side
    54,628.80x = 2,555,223,770.88
  5. Step 5: Solve for x
    x = 2,555,223,770.88/54,628.80
  6. Step 6: Final answer
    x = 46,774.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.