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Finding the Fourth Proportional to 85,433.94, 128,178.33 and 41,063.91

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Solution

The fourth proportional to 85,433.94, 128,178.33 and 41,063.91 is: 61,609.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,433.94 : 128,178.33 = 41,063.91 : x
  2. Step 2: Convert to fraction form
    85,433.94/128,178.33 = 41,063.91/x
  3. Step 3: Cross multiply
    85,433.94x = 128,178.33 × 41,063.91
  4. Step 4: Simplify right side
    85,433.94x = 5,263,503,407.07
  5. Step 5: Solve for x
    x = 5,263,503,407.07/85,433.94
  6. Step 6: Final answer
    x = 61,609.04

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1.5x scale

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.