Home / 90,013.50-124,217.16-49,728.96

Finding the Fourth Proportional to 90,013.50, 124,217.16 and 49,728.96

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Solution

The fourth proportional to 90,013.50, 124,217.16 and 49,728.96 is: 68,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,013.50 : 124,217.16 = 49,728.96 : x
  2. Step 2: Convert to fraction form
    90,013.50/124,217.16 = 49,728.96/x
  3. Step 3: Cross multiply
    90,013.50x = 124,217.16 × 49,728.96
  4. Step 4: Simplify right side
    90,013.50x = 6,177,190,413.76
  5. Step 5: Solve for x
    x = 6,177,190,413.76/90,013.50
  6. Step 6: Final answer
    x = 68,625.15

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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.