Home / 67,712.56-101,578.29-28,260.64

Finding the Fourth Proportional to 67,712.56, 101,578.29 and 28,260.64

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Solution

The fourth proportional to 67,712.56, 101,578.29 and 28,260.64 is: 42,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,712.56 : 101,578.29 = 28,260.64 : x
  2. Step 2: Convert to fraction form
    67,712.56/101,578.29 = 28,260.64/x
  3. Step 3: Cross multiply
    67,712.56x = 101,578.29 × 28,260.64
  4. Step 4: Simplify right side
    67,712.56x = 2,870,667,485.51
  5. Step 5: Solve for x
    x = 2,870,667,485.51/67,712.56
  6. Step 6: Final answer
    x = 42,394.90

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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.