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Finding the Fourth Proportional to 40,605, 60,908.16 and 14,310.06

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Solution

The fourth proportional to 40,605, 60,908.16 and 14,310.06 is: 21,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,605 : 60,908.16 = 14,310.06 : x
  2. Step 2: Convert to fraction form
    40,605/60,908.16 = 14,310.06/x
  3. Step 3: Cross multiply
    40,605x = 60,908.16 × 14,310.06
  4. Step 4: Simplify right side
    40,605x = 871,599,424.09
  5. Step 5: Solve for x
    x = 871,599,424.09/40,605
  6. Step 6: Final answer
    x = 21,465.32

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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.