Home / 81,469.28-112,361.02-57,350.16

Finding the Fourth Proportional to 81,469.28, 112,361.02 and 57,350.16

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Solution

The fourth proportional to 81,469.28, 112,361.02 and 57,350.16 is: 79,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,469.28 : 112,361.02 = 57,350.16 : x
  2. Step 2: Convert to fraction form
    81,469.28/112,361.02 = 57,350.16/x
  3. Step 3: Cross multiply
    81,469.28x = 112,361.02 × 57,350.16
  4. Step 4: Simplify right side
    81,469.28x = 6,443,922,653.98
  5. Step 5: Solve for x
    x = 6,443,922,653.98/81,469.28
  6. Step 6: Final answer
    x = 79,096.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.