Home / 57,742.13-79,684.37-31,246.13

Finding the Fourth Proportional to 57,742.13, 79,684.37 and 31,246.13

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Solution

The fourth proportional to 57,742.13, 79,684.37 and 31,246.13 is: 43,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.13 : 79,684.37 = 31,246.13 : x
  2. Step 2: Convert to fraction form
    57,742.13/79,684.37 = 31,246.13/x
  3. Step 3: Cross multiply
    57,742.13x = 79,684.37 × 31,246.13
  4. Step 4: Simplify right side
    57,742.13x = 2,489,827,863.68
  5. Step 5: Solve for x
    x = 2,489,827,863.68/57,742.13
  6. Step 6: Final answer
    x = 43,119.78

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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.