Home / 91,109.72-136,704.04-48,940.58

Finding the Fourth Proportional to 91,109.72, 136,704.04 and 48,940.58

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Solution

The fourth proportional to 91,109.72, 136,704.04 and 48,940.58 is: 73,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109.72 : 136,704.04 = 48,940.58 : x
  2. Step 2: Convert to fraction form
    91,109.72/136,704.04 = 48,940.58/x
  3. Step 3: Cross multiply
    91,109.72x = 136,704.04 × 48,940.58
  4. Step 4: Simplify right side
    91,109.72x = 6,690,375,225.35
  5. Step 5: Solve for x
    x = 6,690,375,225.35/91,109.72
  6. Step 6: Final answer
    x = 73,432.07

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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.