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Finding the Fourth Proportional to 66,962.78, 100,444.14 and 25,409.78

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Solution

The fourth proportional to 66,962.78, 100,444.14 and 25,409.78 is: 38,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,962.78 : 100,444.14 = 25,409.78 : x
  2. Step 2: Convert to fraction form
    66,962.78/100,444.14 = 25,409.78/x
  3. Step 3: Cross multiply
    66,962.78x = 100,444.14 × 25,409.78
  4. Step 4: Simplify right side
    66,962.78x = 2,552,263,499.69
  5. Step 5: Solve for x
    x = 2,552,263,499.69/66,962.78
  6. Step 6: Final answer
    x = 38,114.66

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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.