Home / 82,275.35-123,413.02-19,945.85

Finding the Fourth Proportional to 82,275.35, 123,413.02 and 19,945.85

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Solution

The fourth proportional to 82,275.35, 123,413.02 and 19,945.85 is: 29,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,275.35 : 123,413.02 = 19,945.85 : x
  2. Step 2: Convert to fraction form
    82,275.35/123,413.02 = 19,945.85/x
  3. Step 3: Cross multiply
    82,275.35x = 123,413.02 × 19,945.85
  4. Step 4: Simplify right side
    82,275.35x = 2,461,577,584.97
  5. Step 5: Solve for x
    x = 2,461,577,584.97/82,275.35
  6. Step 6: Final answer
    x = 29,918.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.