Home / 82,378.55-123,520.98-32,431.60

Finding the Fourth Proportional to 82,378.55, 123,520.98 and 32,431.60

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Solution

The fourth proportional to 82,378.55, 123,520.98 and 32,431.60 is: 48,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,378.55 : 123,520.98 = 32,431.60 : x
  2. Step 2: Convert to fraction form
    82,378.55/123,520.98 = 32,431.60/x
  3. Step 3: Cross multiply
    82,378.55x = 123,520.98 × 32,431.60
  4. Step 4: Simplify right side
    82,378.55x = 4,005,982,397.36
  5. Step 5: Solve for x
    x = 4,005,982,397.36/82,378.55
  6. Step 6: Final answer
    x = 48,628.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.