Home / 55,609.56-76,742.19-30,457.44

Finding the Fourth Proportional to 55,609.56, 76,742.19 and 30,457.44

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Solution

The fourth proportional to 55,609.56, 76,742.19 and 30,457.44 is: 42,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609.56 : 76,742.19 = 30,457.44 : x
  2. Step 2: Convert to fraction form
    55,609.56/76,742.19 = 30,457.44/x
  3. Step 3: Cross multiply
    55,609.56x = 76,742.19 × 30,457.44
  4. Step 4: Simplify right side
    55,609.56x = 2,337,370,647.39
  5. Step 5: Solve for x
    x = 2,337,370,647.39/55,609.56
  6. Step 6: Final answer
    x = 42,031.81

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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.