Home / 72,529.32-108,797.76-19,937.64

Finding the Fourth Proportional to 72,529.32, 108,797.76 and 19,937.64

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Solution

The fourth proportional to 72,529.32, 108,797.76 and 19,937.64 is: 29,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,529.32 : 108,797.76 = 19,937.64 : x
  2. Step 2: Convert to fraction form
    72,529.32/108,797.76 = 19,937.64/x
  3. Step 3: Cross multiply
    72,529.32x = 108,797.76 × 19,937.64
  4. Step 4: Simplify right side
    72,529.32x = 2,169,170,571.69
  5. Step 5: Solve for x
    x = 2,169,170,571.69/72,529.32
  6. Step 6: Final answer
    x = 29,907.50

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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.