Home / 90,103.73-124,338.11-49,815.14

Finding the Fourth Proportional to 90,103.73, 124,338.11 and 49,815.14

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Solution

The fourth proportional to 90,103.73, 124,338.11 and 49,815.14 is: 68,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,103.73 : 124,338.11 = 49,815.14 : x
  2. Step 2: Convert to fraction form
    90,103.73/124,338.11 = 49,815.14/x
  3. Step 3: Cross multiply
    90,103.73x = 124,338.11 × 49,815.14
  4. Step 4: Simplify right side
    90,103.73x = 6,193,919,486.22
  5. Step 5: Solve for x
    x = 6,193,919,486.22/90,103.73
  6. Step 6: Final answer
    x = 68,742.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.