Home / 43,663.86-65,495.61-12,499.11

Finding the Fourth Proportional to 43,663.86, 65,495.61 and 12,499.11

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Solution

The fourth proportional to 43,663.86, 65,495.61 and 12,499.11 is: 18,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,663.86 : 65,495.61 = 12,499.11 : x
  2. Step 2: Convert to fraction form
    43,663.86/65,495.61 = 12,499.11/x
  3. Step 3: Cross multiply
    43,663.86x = 65,495.61 × 12,499.11
  4. Step 4: Simplify right side
    43,663.86x = 818,636,833.91
  5. Step 5: Solve for x
    x = 818,636,833.91/43,663.86
  6. Step 6: Final answer
    x = 18,748.61

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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.