Home / 85,941.20-128,880.91-29,766.19

Finding the Fourth Proportional to 85,941.20, 128,880.91 and 29,766.19

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Solution

The fourth proportional to 85,941.20, 128,880.91 and 29,766.19 is: 44,638.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,941.20 : 128,880.91 = 29,766.19 : x
  2. Step 2: Convert to fraction form
    85,941.20/128,880.91 = 29,766.19/x
  3. Step 3: Cross multiply
    85,941.20x = 128,880.91 × 29,766.19
  4. Step 4: Simplify right side
    85,941.20x = 3,836,293,654.43
  5. Step 5: Solve for x
    x = 3,836,293,654.43/85,941.20
  6. Step 6: Final answer
    x = 44,638.59

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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.