Home / 81,540.86-112,515.50-45,241.72

Finding the Fourth Proportional to 81,540.86, 112,515.50 and 45,241.72

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Solution

The fourth proportional to 81,540.86, 112,515.50 and 45,241.72 is: 62,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540.86 : 112,515.50 = 45,241.72 : x
  2. Step 2: Convert to fraction form
    81,540.86/112,515.50 = 45,241.72/x
  3. Step 3: Cross multiply
    81,540.86x = 112,515.50 × 45,241.72
  4. Step 4: Simplify right side
    81,540.86x = 5,090,394,184.08
  5. Step 5: Solve for x
    x = 5,090,394,184.08/81,540.86
  6. Step 6: Final answer
    x = 62,427.53

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1.5x scale

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.