Home / 99,727.26-137,624.28-54,405.96

Finding the Fourth Proportional to 99,727.26, 137,624.28 and 54,405.96

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Solution

The fourth proportional to 99,727.26, 137,624.28 and 54,405.96 is: 75,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727.26 : 137,624.28 = 54,405.96 : x
  2. Step 2: Convert to fraction form
    99,727.26/137,624.28 = 54,405.96/x
  3. Step 3: Cross multiply
    99,727.26x = 137,624.28 × 54,405.96
  4. Step 4: Simplify right side
    99,727.26x = 7,487,581,072.71
  5. Step 5: Solve for x
    x = 7,487,581,072.71/99,727.26
  6. Step 6: Final answer
    x = 75,080.59

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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.