Home / 66,962.56-100,444.80-31,905.92

Finding the Fourth Proportional to 66,962.56, 100,444.80 and 31,905.92

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Solution

The fourth proportional to 66,962.56, 100,444.80 and 31,905.92 is: 47,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,962.56 : 100,444.80 = 31,905.92 : x
  2. Step 2: Convert to fraction form
    66,962.56/100,444.80 = 31,905.92/x
  3. Step 3: Cross multiply
    66,962.56x = 100,444.80 × 31,905.92
  4. Step 4: Simplify right side
    66,962.56x = 3,204,783,753.22
  5. Step 5: Solve for x
    x = 3,204,783,753.22/66,962.56
  6. Step 6: Final answer
    x = 47,859.34

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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.