Home / 70,145.37-96,797.79-38,315.40

Finding the Fourth Proportional to 70,145.37, 96,797.79 and 38,315.40

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Solution

The fourth proportional to 70,145.37, 96,797.79 and 38,315.40 is: 52,873.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,145.37 : 96,797.79 = 38,315.40 : x
  2. Step 2: Convert to fraction form
    70,145.37/96,797.79 = 38,315.40/x
  3. Step 3: Cross multiply
    70,145.37x = 96,797.79 × 38,315.40
  4. Step 4: Simplify right side
    70,145.37x = 3,708,846,042.97
  5. Step 5: Solve for x
    x = 3,708,846,042.97/70,145.37
  6. Step 6: Final answer
    x = 52,873.71

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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.