Home / 82,727.40-124,142.40-43,312.80

Finding the Fourth Proportional to 82,727.40, 124,142.40 and 43,312.80

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Solution

The fourth proportional to 82,727.40, 124,142.40 and 43,312.80 is: 64,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,727.40 : 124,142.40 = 43,312.80 : x
  2. Step 2: Convert to fraction form
    82,727.40/124,142.40 = 43,312.80/x
  3. Step 3: Cross multiply
    82,727.40x = 124,142.40 × 43,312.80
  4. Step 4: Simplify right side
    82,727.40x = 5,376,954,942.72
  5. Step 5: Solve for x
    x = 5,376,954,942.72/82,727.40
  6. Step 6: Final answer
    x = 64,996.06

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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.