Home / 72,494.80-108,736.92-19,899.76

Finding the Fourth Proportional to 72,494.80, 108,736.92 and 19,899.76

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Solution

The fourth proportional to 72,494.80, 108,736.92 and 19,899.76 is: 29,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,494.80 : 108,736.92 = 19,899.76 : x
  2. Step 2: Convert to fraction form
    72,494.80/108,736.92 = 19,899.76/x
  3. Step 3: Cross multiply
    72,494.80x = 108,736.92 × 19,899.76
  4. Step 4: Simplify right side
    72,494.80x = 2,163,838,611.14
  5. Step 5: Solve for x
    x = 2,163,838,611.14/72,494.80
  6. Step 6: Final answer
    x = 29,848.19

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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.