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Finding the Fourth Proportional to 40,480.08, 60,712.80 and 10,891.08

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Solution

The fourth proportional to 40,480.08, 60,712.80 and 10,891.08 is: 16,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,480.08 : 60,712.80 = 10,891.08 : x
  2. Step 2: Convert to fraction form
    40,480.08/60,712.80 = 10,891.08/x
  3. Step 3: Cross multiply
    40,480.08x = 60,712.80 × 10,891.08
  4. Step 4: Simplify right side
    40,480.08x = 661,227,961.82
  5. Step 5: Solve for x
    x = 661,227,961.82/40,480.08
  6. Step 6: Final answer
    x = 16,334.65

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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.