Home / 66,470.60-99,764.22-36,921.80

Finding the Fourth Proportional to 66,470.60, 99,764.22 and 36,921.80

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Solution

The fourth proportional to 66,470.60, 99,764.22 and 36,921.80 is: 55,415.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.60 : 99,764.22 = 36,921.80 : x
  2. Step 2: Convert to fraction form
    66,470.60/99,764.22 = 36,921.80/x
  3. Step 3: Cross multiply
    66,470.60x = 99,764.22 × 36,921.80
  4. Step 4: Simplify right side
    66,470.60x = 3,683,474,578.00
  5. Step 5: Solve for x
    x = 3,683,474,578.00/66,470.60
  6. Step 6: Final answer
    x = 55,415.09

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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.