Home / 90,135.39-124,386.10-49,850.85

Finding the Fourth Proportional to 90,135.39, 124,386.10 and 49,850.85

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Solution

The fourth proportional to 90,135.39, 124,386.10 and 49,850.85 is: 68,793.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,135.39 : 124,386.10 = 49,850.85 : x
  2. Step 2: Convert to fraction form
    90,135.39/124,386.10 = 49,850.85/x
  3. Step 3: Cross multiply
    90,135.39x = 124,386.10 × 49,850.85
  4. Step 4: Simplify right side
    90,135.39x = 6,200,752,813.19
  5. Step 5: Solve for x
    x = 6,200,752,813.19/90,135.39
  6. Step 6: Final answer
    x = 68,793.76

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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.