Home / 67,969.13-101,975.36-28,515.65

Finding the Fourth Proportional to 67,969.13, 101,975.36 and 28,515.65

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Solution

The fourth proportional to 67,969.13, 101,975.36 and 28,515.65 is: 42,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,969.13 : 101,975.36 = 28,515.65 : x
  2. Step 2: Convert to fraction form
    67,969.13/101,975.36 = 28,515.65/x
  3. Step 3: Cross multiply
    67,969.13x = 101,975.36 × 28,515.65
  4. Step 4: Simplify right side
    67,969.13x = 2,907,893,021.93
  5. Step 5: Solve for x
    x = 2,907,893,021.93/67,969.13
  6. Step 6: Final answer
    x = 42,782.56

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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.