Home / 65,331.30-90,163.89-38,482.26

Finding the Fourth Proportional to 65,331.30, 90,163.89 and 38,482.26

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Solution

The fourth proportional to 65,331.30, 90,163.89 and 38,482.26 is: 53,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,331.30 : 90,163.89 = 38,482.26 : x
  2. Step 2: Convert to fraction form
    65,331.30/90,163.89 = 38,482.26/x
  3. Step 3: Cross multiply
    65,331.30x = 90,163.89 × 38,482.26
  4. Step 4: Simplify right side
    65,331.30x = 3,469,710,257.59
  5. Step 5: Solve for x
    x = 3,469,710,257.59/65,331.30
  6. Step 6: Final answer
    x = 53,109.46

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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.