Home / 91,219.53-136,828.35-28,890.03

Finding the Fourth Proportional to 91,219.53, 136,828.35 and 28,890.03

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Solution

The fourth proportional to 91,219.53, 136,828.35 and 28,890.03 is: 43,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,219.53 : 136,828.35 = 28,890.03 : x
  2. Step 2: Convert to fraction form
    91,219.53/136,828.35 = 28,890.03/x
  3. Step 3: Cross multiply
    91,219.53x = 136,828.35 × 28,890.03
  4. Step 4: Simplify right side
    91,219.53x = 3,952,975,136.35
  5. Step 5: Solve for x
    x = 3,952,975,136.35/91,219.53
  6. Step 6: Final answer
    x = 43,334.75

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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.