Home / 72,631.44-100,238.64-48,807.72

Finding the Fourth Proportional to 72,631.44, 100,238.64 and 48,807.72

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Solution

The fourth proportional to 72,631.44, 100,238.64 and 48,807.72 is: 67,359.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,631.44 : 100,238.64 = 48,807.72 : x
  2. Step 2: Convert to fraction form
    72,631.44/100,238.64 = 48,807.72/x
  3. Step 3: Cross multiply
    72,631.44x = 100,238.64 × 48,807.72
  4. Step 4: Simplify right side
    72,631.44x = 4,892,419,474.30
  5. Step 5: Solve for x
    x = 4,892,419,474.30/72,631.44
  6. Step 6: Final answer
    x = 67,359.53

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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.