Home / 82,758.11-124,027.81-30,117.02

Finding the Fourth Proportional to 82,758.11, 124,027.81 and 30,117.02

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Solution

The fourth proportional to 82,758.11, 124,027.81 and 30,117.02 is: 45,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,758.11 : 124,027.81 = 30,117.02 : x
  2. Step 2: Convert to fraction form
    82,758.11/124,027.81 = 30,117.02/x
  3. Step 3: Cross multiply
    82,758.11x = 124,027.81 × 30,117.02
  4. Step 4: Simplify right side
    82,758.11x = 3,735,347,338.89
  5. Step 5: Solve for x
    x = 3,735,347,338.89/82,758.11
  6. Step 6: Final answer
    x = 45,135.73

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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.