Home / 57,439.30-85,964.55-50,440.90

Finding the Fourth Proportional to 57,439.30, 85,964.55 and 50,440.90

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Solution

The fourth proportional to 57,439.30, 85,964.55 and 50,440.90 is: 75,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,439.30 : 85,964.55 = 50,440.90 : x
  2. Step 2: Convert to fraction form
    57,439.30/85,964.55 = 50,440.90/x
  3. Step 3: Cross multiply
    57,439.30x = 85,964.55 × 50,440.90
  4. Step 4: Simplify right side
    57,439.30x = 4,336,129,270.10
  5. Step 5: Solve for x
    x = 4,336,129,270.10/57,439.30
  6. Step 6: Final answer
    x = 75,490.64

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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.