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Finding the Fourth Proportional to 89,130.87, 133,606.34 and 55,874.29

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Solution

The fourth proportional to 89,130.87, 133,606.34 and 55,874.29 is: 83,755.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,130.87 : 133,606.34 = 55,874.29 : x
  2. Step 2: Convert to fraction form
    89,130.87/133,606.34 = 55,874.29/x
  3. Step 3: Cross multiply
    89,130.87x = 133,606.34 × 55,874.29
  4. Step 4: Simplify right side
    89,130.87x = 7,465,159,387.00
  5. Step 5: Solve for x
    x = 7,465,159,387.00/89,130.87
  6. Step 6: Final answer
    x = 83,755.04

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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.