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Finding the Fourth Proportional to 40,088.82, 60,142.94 and 12,008.82

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Solution

The fourth proportional to 40,088.82, 60,142.94 and 12,008.82 is: 18,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,088.82 : 60,142.94 = 12,008.82 : x
  2. Step 2: Convert to fraction form
    40,088.82/60,142.94 = 12,008.82/x
  3. Step 3: Cross multiply
    40,088.82x = 60,142.94 × 12,008.82
  4. Step 4: Simplify right side
    40,088.82x = 722,245,470.04
  5. Step 5: Solve for x
    x = 722,245,470.04/40,088.82
  6. Step 6: Final answer
    x = 18,016.13

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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.