Home / 65,761.14-90,755.91-40,267.38

Finding the Fourth Proportional to 65,761.14, 90,755.91 and 40,267.38

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Solution

The fourth proportional to 65,761.14, 90,755.91 and 40,267.38 is: 55,572.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,761.14 : 90,755.91 = 40,267.38 : x
  2. Step 2: Convert to fraction form
    65,761.14/90,755.91 = 40,267.38/x
  3. Step 3: Cross multiply
    65,761.14x = 90,755.91 × 40,267.38
  4. Step 4: Simplify right side
    65,761.14x = 3,654,502,715.22
  5. Step 5: Solve for x
    x = 3,654,502,715.22/65,761.14
  6. Step 6: Final answer
    x = 55,572.37

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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.