Home / 79,489.18-119,159.65-26,861.86

Finding the Fourth Proportional to 79,489.18, 119,159.65 and 26,861.86

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Solution

The fourth proportional to 79,489.18, 119,159.65 and 26,861.86 is: 40,267.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,489.18 : 119,159.65 = 26,861.86 : x
  2. Step 2: Convert to fraction form
    79,489.18/119,159.65 = 26,861.86/x
  3. Step 3: Cross multiply
    79,489.18x = 119,159.65 × 26,861.86
  4. Step 4: Simplify right side
    79,489.18x = 3,200,849,105.84
  5. Step 5: Solve for x
    x = 3,200,849,105.84/79,489.18
  6. Step 6: Final answer
    x = 40,267.74

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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.