Home / 67,970.66-101,974.46-20,587.36

Finding the Fourth Proportional to 67,970.66, 101,974.46 and 20,587.36

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Solution

The fourth proportional to 67,970.66, 101,974.46 and 20,587.36 is: 30,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,970.66 : 101,974.46 = 20,587.36 : x
  2. Step 2: Convert to fraction form
    67,970.66/101,974.46 = 20,587.36/x
  3. Step 3: Cross multiply
    67,970.66x = 101,974.46 × 20,587.36
  4. Step 4: Simplify right side
    67,970.66x = 2,099,384,369.75
  5. Step 5: Solve for x
    x = 2,099,384,369.75/67,970.66
  6. Step 6: Final answer
    x = 30,886.63

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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.