Home / 45,103.12-67,717.25-28,413.88

Finding the Fourth Proportional to 45,103.12, 67,717.25 and 28,413.88

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Solution

The fourth proportional to 45,103.12, 67,717.25 and 28,413.88 is: 42,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,103.12 : 67,717.25 = 28,413.88 : x
  2. Step 2: Convert to fraction form
    45,103.12/67,717.25 = 28,413.88/x
  3. Step 3: Cross multiply
    45,103.12x = 67,717.25 × 28,413.88
  4. Step 4: Simplify right side
    45,103.12x = 1,924,109,334.77
  5. Step 5: Solve for x
    x = 1,924,109,334.77/45,103.12
  6. Step 6: Final answer
    x = 42,660.23

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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.