Home / 52,709.94-79,043.04-19,431.90

Finding the Fourth Proportional to 52,709.94, 79,043.04 and 19,431.90

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Solution

The fourth proportional to 52,709.94, 79,043.04 and 19,431.90 is: 29,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,709.94 : 79,043.04 = 19,431.90 : x
  2. Step 2: Convert to fraction form
    52,709.94/79,043.04 = 19,431.90/x
  3. Step 3: Cross multiply
    52,709.94x = 79,043.04 × 19,431.90
  4. Step 4: Simplify right side
    52,709.94x = 1,535,956,448.98
  5. Step 5: Solve for x
    x = 1,535,956,448.98/52,709.94
  6. Step 6: Final answer
    x = 29,139.79

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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.