Home / 67,972.06-101,976.41-28,518.58

Finding the Fourth Proportional to 67,972.06, 101,976.41 and 28,518.58

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Solution

The fourth proportional to 67,972.06, 101,976.41 and 28,518.58 is: 42,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,972.06 : 101,976.41 = 28,518.58 : x
  2. Step 2: Convert to fraction form
    67,972.06/101,976.41 = 28,518.58/x
  3. Step 3: Cross multiply
    67,972.06x = 101,976.41 × 28,518.58
  4. Step 4: Simplify right side
    67,972.06x = 2,908,222,406.70
  5. Step 5: Solve for x
    x = 2,908,222,406.70/67,972.06
  6. Step 6: Final answer
    x = 42,785.56

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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.