Home / 85,076.28-127,485.08-40,641.84

Finding the Fourth Proportional to 85,076.28, 127,485.08 and 40,641.84

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Solution

The fourth proportional to 85,076.28, 127,485.08 and 40,641.84 is: 60,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.28 : 127,485.08 = 40,641.84 : x
  2. Step 2: Convert to fraction form
    85,076.28/127,485.08 = 40,641.84/x
  3. Step 3: Cross multiply
    85,076.28x = 127,485.08 × 40,641.84
  4. Step 4: Simplify right side
    85,076.28x = 5,181,228,223.75
  5. Step 5: Solve for x
    x = 5,181,228,223.75/85,076.28
  6. Step 6: Final answer
    x = 60,900.97

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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.