Home / 55,170.50-76,136.52-30,020

Finding the Fourth Proportional to 55,170.50, 76,136.52 and 30,020

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Solution

The fourth proportional to 55,170.50, 76,136.52 and 30,020 is: 41,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,170.50 : 76,136.52 = 30,020 : x
  2. Step 2: Convert to fraction form
    55,170.50/76,136.52 = 30,020/x
  3. Step 3: Cross multiply
    55,170.50x = 76,136.52 × 30,020
  4. Step 4: Simplify right side
    55,170.50x = 2,285,618,330.40
  5. Step 5: Solve for x
    x = 2,285,618,330.40/55,170.50
  6. Step 6: Final answer
    x = 41,428.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.