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Finding the Fourth Proportional to 73,319, 101,180.22 and 39,785

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Solution

The fourth proportional to 73,319, 101,180.22 and 39,785 is: 54,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,319 : 101,180.22 = 39,785 : x
  2. Step 2: Convert to fraction form
    73,319/101,180.22 = 39,785/x
  3. Step 3: Cross multiply
    73,319x = 101,180.22 × 39,785
  4. Step 4: Simplify right side
    73,319x = 4,025,455,052.70
  5. Step 5: Solve for x
    x = 4,025,455,052.70/73,319
  6. Step 6: Final answer
    x = 54,903.30

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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.