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Finding the Fourth Proportional to 89,239.52, 133,816.52 and 51,809.93

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Solution

The fourth proportional to 89,239.52, 133,816.52 and 51,809.93 is: 77,690.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,239.52 : 133,816.52 = 51,809.93 : x
  2. Step 2: Convert to fraction form
    89,239.52/133,816.52 = 51,809.93/x
  3. Step 3: Cross multiply
    89,239.52x = 133,816.52 × 51,809.93
  4. Step 4: Simplify right side
    89,239.52x = 6,933,024,496.30
  5. Step 5: Solve for x
    x = 6,933,024,496.30/89,239.52
  6. Step 6: Final answer
    x = 77,690.07

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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.