Home / 67,473.07-101,209.61-20,719.87

Finding the Fourth Proportional to 67,473.07, 101,209.61 and 20,719.87

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Solution

The fourth proportional to 67,473.07, 101,209.61 and 20,719.87 is: 31,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,473.07 : 101,209.61 = 20,719.87 : x
  2. Step 2: Convert to fraction form
    67,473.07/101,209.61 = 20,719.87/x
  3. Step 3: Cross multiply
    67,473.07x = 101,209.61 × 20,719.87
  4. Step 4: Simplify right side
    67,473.07x = 2,097,049,961.95
  5. Step 5: Solve for x
    x = 2,097,049,961.95/67,473.07
  6. Step 6: Final answer
    x = 31,079.81

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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.