Home / 82,710.40-124,195.20-47,718.40

Finding the Fourth Proportional to 82,710.40, 124,195.20 and 47,718.40

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Solution

The fourth proportional to 82,710.40, 124,195.20 and 47,718.40 is: 71,652.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,710.40 : 124,195.20 = 47,718.40 : x
  2. Step 2: Convert to fraction form
    82,710.40/124,195.20 = 47,718.40/x
  3. Step 3: Cross multiply
    82,710.40x = 124,195.20 × 47,718.40
  4. Step 4: Simplify right side
    82,710.40x = 5,926,396,231.68
  5. Step 5: Solve for x
    x = 5,926,396,231.68/82,710.40
  6. Step 6: Final answer
    x = 71,652.37

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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.