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Finding the Fourth Proportional to 73,267.40, 109,890.30 and 20,682.20

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Solution

The fourth proportional to 73,267.40, 109,890.30 and 20,682.20 is: 31,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,267.40 : 109,890.30 = 20,682.20 : x
  2. Step 2: Convert to fraction form
    73,267.40/109,890.30 = 20,682.20/x
  3. Step 3: Cross multiply
    73,267.40x = 109,890.30 × 20,682.20
  4. Step 4: Simplify right side
    73,267.40x = 2,272,773,162.66
  5. Step 5: Solve for x
    x = 2,272,773,162.66/73,267.40
  6. Step 6: Final answer
    x = 31,020.25

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1.5x scale

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.