Home / 67,474.32-101,211.60-20,726.88

Finding the Fourth Proportional to 67,474.32, 101,211.60 and 20,726.88

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Solution

The fourth proportional to 67,474.32, 101,211.60 and 20,726.88 is: 31,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,474.32 : 101,211.60 = 20,726.88 : x
  2. Step 2: Convert to fraction form
    67,474.32/101,211.60 = 20,726.88/x
  3. Step 3: Cross multiply
    67,474.32x = 101,211.60 × 20,726.88
  4. Step 4: Simplify right side
    67,474.32x = 2,097,800,687.81
  5. Step 5: Solve for x
    x = 2,097,800,687.81/67,474.32
  6. Step 6: Final answer
    x = 31,090.36

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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.