Home / 45,343.13-68,015.90-14,178.38

Finding the Fourth Proportional to 45,343.13, 68,015.90 and 14,178.38

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Solution

The fourth proportional to 45,343.13, 68,015.90 and 14,178.38 is: 21,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,343.13 : 68,015.90 = 14,178.38 : x
  2. Step 2: Convert to fraction form
    45,343.13/68,015.90 = 14,178.38/x
  3. Step 3: Cross multiply
    45,343.13x = 68,015.90 × 14,178.38
  4. Step 4: Simplify right side
    45,343.13x = 964,354,971.61
  5. Step 5: Solve for x
    x = 964,354,971.61/45,343.13
  6. Step 6: Final answer
    x = 21,267.94

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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.