Home / 65,385.73-90,231.47-38,529.37

Finding the Fourth Proportional to 65,385.73, 90,231.47 and 38,529.37

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Solution

The fourth proportional to 65,385.73, 90,231.47 and 38,529.37 is: 53,170.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,385.73 : 90,231.47 = 38,529.37 : x
  2. Step 2: Convert to fraction form
    65,385.73/90,231.47 = 38,529.37/x
  3. Step 3: Cross multiply
    65,385.73x = 90,231.47 × 38,529.37
  4. Step 4: Simplify right side
    65,385.73x = 3,476,561,500.63
  5. Step 5: Solve for x
    x = 3,476,561,500.63/65,385.73
  6. Step 6: Final answer
    x = 53,170.03

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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.