Home / 91,051.15-136,571.85-27,871.30

Finding the Fourth Proportional to 91,051.15, 136,571.85 and 27,871.30

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Solution

The fourth proportional to 91,051.15, 136,571.85 and 27,871.30 is: 41,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,051.15 : 136,571.85 = 27,871.30 : x
  2. Step 2: Convert to fraction form
    91,051.15/136,571.85 = 27,871.30/x
  3. Step 3: Cross multiply
    91,051.15x = 136,571.85 × 27,871.30
  4. Step 4: Simplify right side
    91,051.15x = 3,806,435,002.91
  5. Step 5: Solve for x
    x = 3,806,435,002.91/91,051.15
  6. Step 6: Final answer
    x = 41,805.46

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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.