Home / 85,240.80-127,833.49-40,255.19

Finding the Fourth Proportional to 85,240.80, 127,833.49 and 40,255.19

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Solution

The fourth proportional to 85,240.80, 127,833.49 and 40,255.19 is: 60,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.80 : 127,833.49 = 40,255.19 : x
  2. Step 2: Convert to fraction form
    85,240.80/127,833.49 = 40,255.19/x
  3. Step 3: Cross multiply
    85,240.80x = 127,833.49 × 40,255.19
  4. Step 4: Simplify right side
    85,240.80x = 5,145,961,428.31
  5. Step 5: Solve for x
    x = 5,145,961,428.31/85,240.80
  6. Step 6: Final answer
    x = 60,369.70

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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.