Home / 65,344.62-90,161.70-38,477.34

Finding the Fourth Proportional to 65,344.62, 90,161.70 and 38,477.34

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Solution

The fourth proportional to 65,344.62, 90,161.70 and 38,477.34 is: 53,090.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,344.62 : 90,161.70 = 38,477.34 : x
  2. Step 2: Convert to fraction form
    65,344.62/90,161.70 = 38,477.34/x
  3. Step 3: Cross multiply
    65,344.62x = 90,161.70 × 38,477.34
  4. Step 4: Simplify right side
    65,344.62x = 3,469,182,385.88
  5. Step 5: Solve for x
    x = 3,469,182,385.88/65,344.62
  6. Step 6: Final answer
    x = 53,090.56

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1.5x scale

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.