Home / 51,451.29-70,980.24-30,220.98

Finding the Fourth Proportional to 51,451.29, 70,980.24 and 30,220.98

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Solution

The fourth proportional to 51,451.29, 70,980.24 and 30,220.98 is: 41,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,451.29 : 70,980.24 = 30,220.98 : x
  2. Step 2: Convert to fraction form
    51,451.29/70,980.24 = 30,220.98/x
  3. Step 3: Cross multiply
    51,451.29x = 70,980.24 × 30,220.98
  4. Step 4: Simplify right side
    51,451.29x = 2,145,092,413.44
  5. Step 5: Solve for x
    x = 2,145,092,413.44/51,451.29
  6. Step 6: Final answer
    x = 41,691.71

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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.