Home / 82,700.19-124,103.75-43,284.38

Finding the Fourth Proportional to 82,700.19, 124,103.75 and 43,284.38

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Solution

The fourth proportional to 82,700.19, 124,103.75 and 43,284.38 is: 64,954.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,700.19 : 124,103.75 = 43,284.38 : x
  2. Step 2: Convert to fraction form
    82,700.19/124,103.75 = 43,284.38/x
  3. Step 3: Cross multiply
    82,700.19x = 124,103.75 × 43,284.38
  4. Step 4: Simplify right side
    82,700.19x = 5,371,753,037.48
  5. Step 5: Solve for x
    x = 5,371,753,037.48/82,700.19
  6. Step 6: Final answer
    x = 64,954.54

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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.