Home / 82,709.97-124,077.25-38,341.20

Finding the Fourth Proportional to 82,709.97, 124,077.25 and 38,341.20

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Solution

The fourth proportional to 82,709.97, 124,077.25 and 38,341.20 is: 57,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,709.97 : 124,077.25 = 38,341.20 : x
  2. Step 2: Convert to fraction form
    82,709.97/124,077.25 = 38,341.20/x
  3. Step 3: Cross multiply
    82,709.97x = 124,077.25 × 38,341.20
  4. Step 4: Simplify right side
    82,709.97x = 4,757,271,170.92
  5. Step 5: Solve for x
    x = 4,757,271,170.92/82,709.97
  6. Step 6: Final answer
    x = 57,517.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.