Home / 82,275.75-123,413.63-19,946.25

Finding the Fourth Proportional to 82,275.75, 123,413.63 and 19,946.25

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Solution

The fourth proportional to 82,275.75, 123,413.63 and 19,946.25 is: 29,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,275.75 : 123,413.63 = 19,946.25 : x
  2. Step 2: Convert to fraction form
    82,275.75/123,413.63 = 19,946.25/x
  3. Step 3: Cross multiply
    82,275.75x = 123,413.63 × 19,946.25
  4. Step 4: Simplify right side
    82,275.75x = 2,461,639,017.66
  5. Step 5: Solve for x
    x = 2,461,639,017.66/82,275.75
  6. Step 6: Final answer
    x = 29,919.38

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Similar ratio
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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.