Home / 99,684.32-137,561.10-54,361.04

Finding the Fourth Proportional to 99,684.32, 137,561.10 and 54,361.04

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Solution

The fourth proportional to 99,684.32, 137,561.10 and 54,361.04 is: 75,016.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,684.32 : 137,561.10 = 54,361.04 : x
  2. Step 2: Convert to fraction form
    99,684.32/137,561.10 = 54,361.04/x
  3. Step 3: Cross multiply
    99,684.32x = 137,561.10 × 54,361.04
  4. Step 4: Simplify right side
    99,684.32x = 7,477,964,459.54
  5. Step 5: Solve for x
    x = 7,477,964,459.54/99,684.32
  6. Step 6: Final answer
    x = 75,016.46

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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.