Home / 83,137.10-124,620.60-40,952.30

Finding the Fourth Proportional to 83,137.10, 124,620.60 and 40,952.30

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Solution

The fourth proportional to 83,137.10, 124,620.60 and 40,952.30 is: 61,386.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,137.10 : 124,620.60 = 40,952.30 : x
  2. Step 2: Convert to fraction form
    83,137.10/124,620.60 = 40,952.30/x
  3. Step 3: Cross multiply
    83,137.10x = 124,620.60 × 40,952.30
  4. Step 4: Simplify right side
    83,137.10x = 5,103,500,197.38
  5. Step 5: Solve for x
    x = 5,103,500,197.38/83,137.10
  6. Step 6: Final answer
    x = 61,386.56

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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.