Home / 82,983.42-124,476.30-20,653.92

Finding the Fourth Proportional to 82,983.42, 124,476.30 and 20,653.92

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Solution

The fourth proportional to 82,983.42, 124,476.30 and 20,653.92 is: 30,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,983.42 : 124,476.30 = 20,653.92 : x
  2. Step 2: Convert to fraction form
    82,983.42/124,476.30 = 20,653.92/x
  3. Step 3: Cross multiply
    82,983.42x = 124,476.30 × 20,653.92
  4. Step 4: Simplify right side
    82,983.42x = 2,570,923,542.10
  5. Step 5: Solve for x
    x = 2,570,923,542.10/82,983.42
  6. Step 6: Final answer
    x = 30,981.17

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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.