Home / 90,027.69-124,234.88-49,740.60

Finding the Fourth Proportional to 90,027.69, 124,234.88 and 49,740.60

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Solution

The fourth proportional to 90,027.69, 124,234.88 and 49,740.60 is: 68,640.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,027.69 : 124,234.88 = 49,740.60 : x
  2. Step 2: Convert to fraction form
    90,027.69/124,234.88 = 49,740.60/x
  3. Step 3: Cross multiply
    90,027.69x = 124,234.88 × 49,740.60
  4. Step 4: Simplify right side
    90,027.69x = 6,179,517,223.43
  5. Step 5: Solve for x
    x = 6,179,517,223.43/90,027.69
  6. Step 6: Final answer
    x = 68,640.18

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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.