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Finding the Fourth Proportional to 67,995.78, 101,907.30 and 38,430.24

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Solution

The fourth proportional to 67,995.78, 101,907.30 and 38,430.24 is: 57,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,995.78 : 101,907.30 = 38,430.24 : x
  2. Step 2: Convert to fraction form
    67,995.78/101,907.30 = 38,430.24/x
  3. Step 3: Cross multiply
    67,995.78x = 101,907.30 × 38,430.24
  4. Step 4: Simplify right side
    67,995.78x = 3,916,321,996.75
  5. Step 5: Solve for x
    x = 3,916,321,996.75/67,995.78
  6. Step 6: Final answer
    x = 57,596.54

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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.