Home / 91,571.12-137,396.14-49,442.84

Finding the Fourth Proportional to 91,571.12, 137,396.14 and 49,442.84

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Solution

The fourth proportional to 91,571.12, 137,396.14 and 49,442.84 is: 74,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,571.12 : 137,396.14 = 49,442.84 : x
  2. Step 2: Convert to fraction form
    91,571.12/137,396.14 = 49,442.84/x
  3. Step 3: Cross multiply
    91,571.12x = 137,396.14 × 49,442.84
  4. Step 4: Simplify right side
    91,571.12x = 6,793,255,366.64
  5. Step 5: Solve for x
    x = 6,793,255,366.64/91,571.12
  6. Step 6: Final answer
    x = 74,185.57

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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.