Home / 82,766.04-124,149.10-20,436.60

Finding the Fourth Proportional to 82,766.04, 124,149.10 and 20,436.60

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Solution

The fourth proportional to 82,766.04, 124,149.10 and 20,436.60 is: 30,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,766.04 : 124,149.10 = 20,436.60 : x
  2. Step 2: Convert to fraction form
    82,766.04/124,149.10 = 20,436.60/x
  3. Step 3: Cross multiply
    82,766.04x = 124,149.10 × 20,436.60
  4. Step 4: Simplify right side
    82,766.04x = 2,537,185,497.06
  5. Step 5: Solve for x
    x = 2,537,185,497.06/82,766.04
  6. Step 6: Final answer
    x = 30,654.91

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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.