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Finding the Fourth Proportional to 88,742.70, 133,081.65 and 29,580.30

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Solution

The fourth proportional to 88,742.70, 133,081.65 and 29,580.30 is: 44,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,742.70 : 133,081.65 = 29,580.30 : x
  2. Step 2: Convert to fraction form
    88,742.70/133,081.65 = 29,580.30/x
  3. Step 3: Cross multiply
    88,742.70x = 133,081.65 × 29,580.30
  4. Step 4: Simplify right side
    88,742.70x = 3,936,595,131.50
  5. Step 5: Solve for x
    x = 3,936,595,131.50/88,742.70
  6. Step 6: Final answer
    x = 44,359.65

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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.