Home / 54,916.48-82,391.12-38,936.80

Finding the Fourth Proportional to 54,916.48, 82,391.12 and 38,936.80

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Solution

The fourth proportional to 54,916.48, 82,391.12 and 38,936.80 is: 58,416.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,916.48 : 82,391.12 = 38,936.80 : x
  2. Step 2: Convert to fraction form
    54,916.48/82,391.12 = 38,936.80/x
  3. Step 3: Cross multiply
    54,916.48x = 82,391.12 × 38,936.80
  4. Step 4: Simplify right side
    54,916.48x = 3,208,046,834.55
  5. Step 5: Solve for x
    x = 3,208,046,834.55/54,916.48
  6. Step 6: Final answer
    x = 58,416.83

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1.5x scale

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.