Home / 91,724.40-137,586.60-63,730.80

Finding the Fourth Proportional to 91,724.40, 137,586.60 and 63,730.80

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Solution

The fourth proportional to 91,724.40, 137,586.60 and 63,730.80 is: 95,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,724.40 : 137,586.60 = 63,730.80 : x
  2. Step 2: Convert to fraction form
    91,724.40/137,586.60 = 63,730.80/x
  3. Step 3: Cross multiply
    91,724.40x = 137,586.60 × 63,730.80
  4. Step 4: Simplify right side
    91,724.40x = 8,768,504,087.28
  5. Step 5: Solve for x
    x = 8,768,504,087.28/91,724.40
  6. Step 6: Final answer
    x = 95,596.20

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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.