Home / 71,378.21-98,505.92-40,760.35

Finding the Fourth Proportional to 71,378.21, 98,505.92 and 40,760.35

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Solution

The fourth proportional to 71,378.21, 98,505.92 and 40,760.35 is: 56,251.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,378.21 : 98,505.92 = 40,760.35 : x
  2. Step 2: Convert to fraction form
    71,378.21/98,505.92 = 40,760.35/x
  3. Step 3: Cross multiply
    71,378.21x = 98,505.92 × 40,760.35
  4. Step 4: Simplify right side
    71,378.21x = 4,015,135,631.91
  5. Step 5: Solve for x
    x = 4,015,135,631.91/71,378.21
  6. Step 6: Final answer
    x = 56,251.56

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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.