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Finding the Fourth Proportional to 66,914.40, 100,437.21 and 50,971.17

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Solution

The fourth proportional to 66,914.40, 100,437.21 and 50,971.17 is: 76,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,914.40 : 100,437.21 = 50,971.17 : x
  2. Step 2: Convert to fraction form
    66,914.40/100,437.21 = 50,971.17/x
  3. Step 3: Cross multiply
    66,914.40x = 100,437.21 × 50,971.17
  4. Step 4: Simplify right side
    66,914.40x = 5,119,402,105.24
  5. Step 5: Solve for x
    x = 5,119,402,105.24/66,914.40
  6. Step 6: Final answer
    x = 76,506.73

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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.