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Finding the Fourth Proportional to 65,173.39, 89,979.91 and 50,035.91

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Solution

The fourth proportional to 65,173.39, 89,979.91 and 50,035.91 is: 69,080.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,173.39 : 89,979.91 = 50,035.91 : x
  2. Step 2: Convert to fraction form
    65,173.39/89,979.91 = 50,035.91/x
  3. Step 3: Cross multiply
    65,173.39x = 89,979.91 × 50,035.91
  4. Step 4: Simplify right side
    65,173.39x = 4,502,226,678.57
  5. Step 5: Solve for x
    x = 4,502,226,678.57/65,173.39
  6. Step 6: Final answer
    x = 69,080.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.