Home / 65,825.31-90,833.49-38,963.19

Finding the Fourth Proportional to 65,825.31, 90,833.49 and 38,963.19

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Solution

The fourth proportional to 65,825.31, 90,833.49 and 38,963.19 is: 53,765.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,825.31 : 90,833.49 = 38,963.19 : x
  2. Step 2: Convert to fraction form
    65,825.31/90,833.49 = 38,963.19/x
  3. Step 3: Cross multiply
    65,825.31x = 90,833.49 × 38,963.19
  4. Step 4: Simplify right side
    65,825.31x = 3,539,162,529.23
  5. Step 5: Solve for x
    x = 3,539,162,529.23/65,825.31
  6. Step 6: Final answer
    x = 53,765.98

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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.