Home / 82,313.28-113,489.10-67,190.58

Finding the Fourth Proportional to 82,313.28, 113,489.10 and 67,190.58

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Solution

The fourth proportional to 82,313.28, 113,489.10 and 67,190.58 is: 92,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,313.28 : 113,489.10 = 67,190.58 : x
  2. Step 2: Convert to fraction form
    82,313.28/113,489.10 = 67,190.58/x
  3. Step 3: Cross multiply
    82,313.28x = 113,489.10 × 67,190.58
  4. Step 4: Simplify right side
    82,313.28x = 7,625,398,452.68
  5. Step 5: Solve for x
    x = 7,625,398,452.68/82,313.28
  6. Step 6: Final answer
    x = 92,638.74

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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.