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Finding the Fourth Proportional to 89,095.68, 133,470.59 and 79,631.64

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Solution

The fourth proportional to 89,095.68, 133,470.59 and 79,631.64 is: 119,292.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,095.68 : 133,470.59 = 79,631.64 : x
  2. Step 2: Convert to fraction form
    89,095.68/133,470.59 = 79,631.64/x
  3. Step 3: Cross multiply
    89,095.68x = 133,470.59 × 79,631.64
  4. Step 4: Simplify right side
    89,095.68x = 10,628,481,575.31
  5. Step 5: Solve for x
    x = 10,628,481,575.31/89,095.68
  6. Step 6: Final answer
    x = 119,292.89

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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.