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Finding the Fourth Proportional to 81,361.69, 112,283.36 and 45,549.57

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Solution

The fourth proportional to 81,361.69, 112,283.36 and 45,549.57 is: 62,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,361.69 : 112,283.36 = 45,549.57 : x
  2. Step 2: Convert to fraction form
    81,361.69/112,283.36 = 45,549.57/x
  3. Step 3: Cross multiply
    81,361.69x = 112,283.36 × 45,549.57
  4. Step 4: Simplify right side
    81,361.69x = 5,114,458,766.16
  5. Step 5: Solve for x
    x = 5,114,458,766.16/81,361.69
  6. Step 6: Final answer
    x = 62,860.77

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1.5x scale

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.