Home / 82,772.82-124,177.75-30,182.31

Finding the Fourth Proportional to 82,772.82, 124,177.75 and 30,182.31

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Solution

The fourth proportional to 82,772.82, 124,177.75 and 30,182.31 is: 45,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,772.82 : 124,177.75 = 30,182.31 : x
  2. Step 2: Convert to fraction form
    82,772.82/124,177.75 = 30,182.31/x
  3. Step 3: Cross multiply
    82,772.82x = 124,177.75 × 30,182.31
  4. Step 4: Simplify right side
    82,772.82x = 3,747,971,053.08
  5. Step 5: Solve for x
    x = 3,747,971,053.08/82,772.82
  6. Step 6: Final answer
    x = 45,280.21

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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.