Home / 99,941.26-137,919.30-54,619.23

Finding the Fourth Proportional to 99,941.26, 137,919.30 and 54,619.23

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Solution

The fourth proportional to 99,941.26, 137,919.30 and 54,619.23 is: 75,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,941.26 : 137,919.30 = 54,619.23 : x
  2. Step 2: Convert to fraction form
    99,941.26/137,919.30 = 54,619.23/x
  3. Step 3: Cross multiply
    99,941.26x = 137,919.30 × 54,619.23
  4. Step 4: Simplify right side
    99,941.26x = 7,533,045,426.62
  5. Step 5: Solve for x
    x = 7,533,045,426.62/99,941.26
  6. Step 6: Final answer
    x = 75,374.73

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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.