Home / 67,278.28-92,842.86-38,986.60

Finding the Fourth Proportional to 67,278.28, 92,842.86 and 38,986.60

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Solution

The fourth proportional to 67,278.28, 92,842.86 and 38,986.60 is: 53,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,278.28 : 92,842.86 = 38,986.60 : x
  2. Step 2: Convert to fraction form
    67,278.28/92,842.86 = 38,986.60/x
  3. Step 3: Cross multiply
    67,278.28x = 92,842.86 × 38,986.60
  4. Step 4: Simplify right side
    67,278.28x = 3,619,627,445.68
  5. Step 5: Solve for x
    x = 3,619,627,445.68/67,278.28
  6. Step 6: Final answer
    x = 53,800.83

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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.