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Finding the Fourth Proportional to 101,060.38, 139,469.02 and 58,039.40

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Solution

The fourth proportional to 101,060.38, 139,469.02 and 58,039.40 is: 80,097.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,060.38 : 139,469.02 = 58,039.40 : x
  2. Step 2: Convert to fraction form
    101,060.38/139,469.02 = 58,039.40/x
  3. Step 3: Cross multiply
    101,060.38x = 139,469.02 × 58,039.40
  4. Step 4: Simplify right side
    101,060.38x = 8,094,698,239.39
  5. Step 5: Solve for x
    x = 8,094,698,239.39/101,060.38
  6. Step 6: Final answer
    x = 80,097.64

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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.