Home / 81,845.40-122,703.30-44,909.40

Finding the Fourth Proportional to 81,845.40, 122,703.30 and 44,909.40

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Solution

The fourth proportional to 81,845.40, 122,703.30 and 44,909.40 is: 67,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,845.40 : 122,703.30 = 44,909.40 : x
  2. Step 2: Convert to fraction form
    81,845.40/122,703.30 = 44,909.40/x
  3. Step 3: Cross multiply
    81,845.40x = 122,703.30 × 44,909.40
  4. Step 4: Simplify right side
    81,845.40x = 5,510,531,581.02
  5. Step 5: Solve for x
    x = 5,510,531,581.02/81,845.40
  6. Step 6: Final answer
    x = 67,328.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.