Home / 69,979.99-104,965.66-28,425.91

Finding the Fourth Proportional to 69,979.99, 104,965.66 and 28,425.91

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Solution

The fourth proportional to 69,979.99, 104,965.66 and 28,425.91 is: 42,637.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,979.99 : 104,965.66 = 28,425.91 : x
  2. Step 2: Convert to fraction form
    69,979.99/104,965.66 = 28,425.91/x
  3. Step 3: Cross multiply
    69,979.99x = 104,965.66 × 28,425.91
  4. Step 4: Simplify right side
    69,979.99x = 2,983,744,404.25
  5. Step 5: Solve for x
    x = 2,983,744,404.25/69,979.99
  6. Step 6: Final answer
    x = 42,637.11

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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.