Home / 99,361.15-137,119.03-54,039.62

Finding the Fourth Proportional to 99,361.15, 137,119.03 and 54,039.62

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Solution

The fourth proportional to 99,361.15, 137,119.03 and 54,039.62 is: 74,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,361.15 : 137,119.03 = 54,039.62 : x
  2. Step 2: Convert to fraction form
    99,361.15/137,119.03 = 54,039.62/x
  3. Step 3: Cross multiply
    99,361.15x = 137,119.03 × 54,039.62
  4. Step 4: Simplify right side
    99,361.15x = 7,409,860,483.67
  5. Step 5: Solve for x
    x = 7,409,860,483.67/99,361.15
  6. Step 6: Final answer
    x = 74,575.03

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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.