Home / 73,281.22-109,909.41-20,678.38

Finding the Fourth Proportional to 73,281.22, 109,909.41 and 20,678.38

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Solution

The fourth proportional to 73,281.22, 109,909.41 and 20,678.38 is: 31,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,281.22 : 109,909.41 = 20,678.38 : x
  2. Step 2: Convert to fraction form
    73,281.22/109,909.41 = 20,678.38/x
  3. Step 3: Cross multiply
    73,281.22x = 109,909.41 × 20,678.38
  4. Step 4: Simplify right side
    73,281.22x = 2,272,748,545.56
  5. Step 5: Solve for x
    x = 2,272,748,545.56/73,281.22
  6. Step 6: Final answer
    x = 31,014.07

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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.