Home / 66,441.28-99,644.92-19,683.24

Finding the Fourth Proportional to 66,441.28, 99,644.92 and 19,683.24

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Solution

The fourth proportional to 66,441.28, 99,644.92 and 19,683.24 is: 29,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441.28 : 99,644.92 = 19,683.24 : x
  2. Step 2: Convert to fraction form
    66,441.28/99,644.92 = 19,683.24/x
  3. Step 3: Cross multiply
    66,441.28x = 99,644.92 × 19,683.24
  4. Step 4: Simplify right side
    66,441.28x = 1,961,334,875.14
  5. Step 5: Solve for x
    x = 1,961,334,875.14/66,441.28
  6. Step 6: Final answer
    x = 29,519.82

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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.