Home / 74,217.86-111,315.99-21,613.22

Finding the Fourth Proportional to 74,217.86, 111,315.99 and 21,613.22

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Solution

The fourth proportional to 74,217.86, 111,315.99 and 21,613.22 is: 32,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.86 : 111,315.99 = 21,613.22 : x
  2. Step 2: Convert to fraction form
    74,217.86/111,315.99 = 21,613.22/x
  3. Step 3: Cross multiply
    74,217.86x = 111,315.99 × 21,613.22
  4. Step 4: Simplify right side
    74,217.86x = 2,405,896,981.39
  5. Step 5: Solve for x
    x = 2,405,896,981.39/74,217.86
  6. Step 6: Final answer
    x = 32,416.68

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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.