Home / 69,505.13-95,918.57-39,288.65

Finding the Fourth Proportional to 69,505.13, 95,918.57 and 39,288.65

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Solution

The fourth proportional to 69,505.13, 95,918.57 and 39,288.65 is: 54,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,505.13 : 95,918.57 = 39,288.65 : x
  2. Step 2: Convert to fraction form
    69,505.13/95,918.57 = 39,288.65/x
  3. Step 3: Cross multiply
    69,505.13x = 95,918.57 × 39,288.65
  4. Step 4: Simplify right side
    69,505.13x = 3,768,510,449.19
  5. Step 5: Solve for x
    x = 3,768,510,449.19/69,505.13
  6. Step 6: Final answer
    x = 54,219.17

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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.