Home / 55,609.20-76,740.78-31,743.60

Finding the Fourth Proportional to 55,609.20, 76,740.78 and 31,743.60

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Solution

The fourth proportional to 55,609.20, 76,740.78 and 31,743.60 is: 43,806.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609.20 : 76,740.78 = 31,743.60 : x
  2. Step 2: Convert to fraction form
    55,609.20/76,740.78 = 31,743.60/x
  3. Step 3: Cross multiply
    55,609.20x = 76,740.78 × 31,743.60
  4. Step 4: Simplify right side
    55,609.20x = 2,436,028,624.01
  5. Step 5: Solve for x
    x = 2,436,028,624.01/55,609.20
  6. Step 6: Final answer
    x = 43,806.22

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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.