Home / 91,690.42-137,520.87-25,114.98

Finding the Fourth Proportional to 91,690.42, 137,520.87 and 25,114.98

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Solution

The fourth proportional to 91,690.42, 137,520.87 and 25,114.98 is: 37,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,690.42 : 137,520.87 = 25,114.98 : x
  2. Step 2: Convert to fraction form
    91,690.42/137,520.87 = 25,114.98/x
  3. Step 3: Cross multiply
    91,690.42x = 137,520.87 × 25,114.98
  4. Step 4: Simplify right side
    91,690.42x = 3,453,833,289.75
  5. Step 5: Solve for x
    x = 3,453,833,289.75/91,690.42
  6. Step 6: Final answer
    x = 37,668.42

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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.