Home / 91,855.15-126,767.42-51,571.55

Finding the Fourth Proportional to 91,855.15, 126,767.42 and 51,571.55

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Solution

The fourth proportional to 91,855.15, 126,767.42 and 51,571.55 is: 71,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,855.15 : 126,767.42 = 51,571.55 : x
  2. Step 2: Convert to fraction form
    91,855.15/126,767.42 = 51,571.55/x
  3. Step 3: Cross multiply
    91,855.15x = 126,767.42 × 51,571.55
  4. Step 4: Simplify right side
    91,855.15x = 6,537,592,467.83
  5. Step 5: Solve for x
    x = 6,537,592,467.83/91,855.15
  6. Step 6: Final answer
    x = 71,172.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.