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Finding the Fourth Proportional to 52,709.72, 72,739.13 and 30,049.65

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Solution

The fourth proportional to 52,709.72, 72,739.13 and 30,049.65 is: 41,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,709.72 : 72,739.13 = 30,049.65 : x
  2. Step 2: Convert to fraction form
    52,709.72/72,739.13 = 30,049.65/x
  3. Step 3: Cross multiply
    52,709.72x = 72,739.13 × 30,049.65
  4. Step 4: Simplify right side
    52,709.72x = 2,185,785,247.56
  5. Step 5: Solve for x
    x = 2,185,785,247.56/52,709.72
  6. Step 6: Final answer
    x = 41,468.36

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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.