Home / 66,176.40-99,243.24-21,792.60

Finding the Fourth Proportional to 66,176.40, 99,243.24 and 21,792.60

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Solution

The fourth proportional to 66,176.40, 99,243.24 and 21,792.60 is: 32,681.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,176.40 : 99,243.24 = 21,792.60 : x
  2. Step 2: Convert to fraction form
    66,176.40/99,243.24 = 21,792.60/x
  3. Step 3: Cross multiply
    66,176.40x = 99,243.24 × 21,792.60
  4. Step 4: Simplify right side
    66,176.40x = 2,162,768,232.02
  5. Step 5: Solve for x
    x = 2,162,768,232.02/66,176.40
  6. Step 6: Final answer
    x = 32,681.87

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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.