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Finding the Fourth Proportional to 89,100.40, 133,667.80 and 29,936.88

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Solution

The fourth proportional to 89,100.40, 133,667.80 and 29,936.88 is: 44,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,100.40 : 133,667.80 = 29,936.88 : x
  2. Step 2: Convert to fraction form
    89,100.40/133,667.80 = 29,936.88/x
  3. Step 3: Cross multiply
    89,100.40x = 133,667.80 × 29,936.88
  4. Step 4: Simplify right side
    89,100.40x = 4,001,596,888.46
  5. Step 5: Solve for x
    x = 4,001,596,888.46/89,100.40
  6. Step 6: Final answer
    x = 44,911.10

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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.