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Finding the Fourth Proportional to 79,935.50, 119,903.25 and 40,503.89

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Solution

The fourth proportional to 79,935.50, 119,903.25 and 40,503.89 is: 60,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,935.50 : 119,903.25 = 40,503.89 : x
  2. Step 2: Convert to fraction form
    79,935.50/119,903.25 = 40,503.89/x
  3. Step 3: Cross multiply
    79,935.50x = 119,903.25 × 40,503.89
  4. Step 4: Simplify right side
    79,935.50x = 4,856,547,449.13
  5. Step 5: Solve for x
    x = 4,856,547,449.13/79,935.50
  6. Step 6: Final answer
    x = 60,755.83

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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.