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Finding the Fourth Proportional to 82,484.80, 123,727.20 and 41,012.80

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Solution

The fourth proportional to 82,484.80, 123,727.20 and 41,012.80 is: 61,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,484.80 : 123,727.20 = 41,012.80 : x
  2. Step 2: Convert to fraction form
    82,484.80/123,727.20 = 41,012.80/x
  3. Step 3: Cross multiply
    82,484.80x = 123,727.20 × 41,012.80
  4. Step 4: Simplify right side
    82,484.80x = 5,074,398,908.16
  5. Step 5: Solve for x
    x = 5,074,398,908.16/82,484.80
  6. Step 6: Final answer
    x = 61,519.20

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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.