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Finding the Fourth Proportional to 66,999.60, 100,353.60 and 58,251.60

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Solution

The fourth proportional to 66,999.60, 100,353.60 and 58,251.60 is: 87,250.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,999.60 : 100,353.60 = 58,251.60 : x
  2. Step 2: Convert to fraction form
    66,999.60/100,353.60 = 58,251.60/x
  3. Step 3: Cross multiply
    66,999.60x = 100,353.60 × 58,251.60
  4. Step 4: Simplify right side
    66,999.60x = 5,845,757,765.76
  5. Step 5: Solve for x
    x = 5,845,757,765.76/66,999.60
  6. Step 6: Final answer
    x = 87,250.64

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1.5x scale

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.