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Finding the Fourth Proportional to 76,769.53, 115,187.76 and 26,885.41

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Solution

The fourth proportional to 76,769.53, 115,187.76 and 26,885.41 is: 40,339.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,769.53 : 115,187.76 = 26,885.41 : x
  2. Step 2: Convert to fraction form
    76,769.53/115,187.76 = 26,885.41/x
  3. Step 3: Cross multiply
    76,769.53x = 115,187.76 × 26,885.41
  4. Step 4: Simplify right side
    76,769.53x = 3,096,870,154.58
  5. Step 5: Solve for x
    x = 3,096,870,154.58/76,769.53
  6. Step 6: Final answer
    x = 40,339.83

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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.