Home / 66,546.30-99,839.46-39,921.60

Finding the Fourth Proportional to 66,546.30, 99,839.46 and 39,921.60

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Solution

The fourth proportional to 66,546.30, 99,839.46 and 39,921.60 is: 59,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546.30 : 99,839.46 = 39,921.60 : x
  2. Step 2: Convert to fraction form
    66,546.30/99,839.46 = 39,921.60/x
  3. Step 3: Cross multiply
    66,546.30x = 99,839.46 × 39,921.60
  4. Step 4: Simplify right side
    66,546.30x = 3,985,750,986.34
  5. Step 5: Solve for x
    x = 3,985,750,986.34/66,546.30
  6. Step 6: Final answer
    x = 59,894.40

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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.