Home / 67,987.31-101,945.91-30,515.26

Finding the Fourth Proportional to 67,987.31, 101,945.91 and 30,515.26

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Solution

The fourth proportional to 67,987.31, 101,945.91 and 30,515.26 is: 45,757.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,987.31 : 101,945.91 = 30,515.26 : x
  2. Step 2: Convert to fraction form
    67,987.31/101,945.91 = 30,515.26/x
  3. Step 3: Cross multiply
    67,987.31x = 101,945.91 × 30,515.26
  4. Step 4: Simplify right side
    67,987.31x = 3,110,905,949.59
  5. Step 5: Solve for x
    x = 3,110,905,949.59/67,987.31
  6. Step 6: Final answer
    x = 45,757.16

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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.