Home / 82,480.04-123,718.96-20,151.08

Finding the Fourth Proportional to 82,480.04, 123,718.96 and 20,151.08

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Solution

The fourth proportional to 82,480.04, 123,718.96 and 20,151.08 is: 30,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,480.04 : 123,718.96 = 20,151.08 : x
  2. Step 2: Convert to fraction form
    82,480.04/123,718.96 = 20,151.08/x
  3. Step 3: Cross multiply
    82,480.04x = 123,718.96 × 20,151.08
  4. Step 4: Simplify right side
    82,480.04x = 2,493,070,660.48
  5. Step 5: Solve for x
    x = 2,493,070,660.48/82,480.04
  6. Step 6: Final answer
    x = 30,226.35

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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.