Home / 99,811.46-137,741.90-54,491.36

Finding the Fourth Proportional to 99,811.46, 137,741.90 and 54,491.36

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Solution

The fourth proportional to 99,811.46, 137,741.90 and 54,491.36 is: 75,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,811.46 : 137,741.90 = 54,491.36 : x
  2. Step 2: Convert to fraction form
    99,811.46/137,741.90 = 54,491.36/x
  3. Step 3: Cross multiply
    99,811.46x = 137,741.90 × 54,491.36
  4. Step 4: Simplify right side
    99,811.46x = 7,505,742,958.59
  5. Step 5: Solve for x
    x = 7,505,742,958.59/99,811.46
  6. Step 6: Final answer
    x = 75,199.21

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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.